What was the change in operating profit between the third and fourth quarter?
{"Total revenue": {"First\nQuarter": 103700.0, "Second Quarter": 138695.0, "Third Quarter": 153415.0, "Fourth Quarter": 133836.0, "Total": 529646.0}, "Cost of revenue (exclusive of depreciation and\namortization)": {"First\nQuarter": 58037.0, "Second Quarter": 56228.0, "Third Quarter": 64957.0, "Fourth Quarter": 69358.0, "Total": 248580.0}, "Total costs and expenses": {"First\nQuarter": 92212.0, "Second Quarter": 92189.0, "Third Quarter": 101017.0, "Fourth Quarter": 123275.0, "Total": 408693.0}, "Operating profit": {"First\nQuarter": 11488.0, "Second Quarter": 46506.0, "Third Quarter": 52398.0, "Fourth Quarter": 10561.0, "Total": 120953.0}, "Total other income (expense), net": {"First\nQuarter": -4682.0, "Second Quarter": -11779.0, "Third Quarter": -6790.0, "Fourth Quarter": -8854.0, "Total": -32105.0}, "Income before income tax expense (benefit)": {"First\nQuarter": 6806.0, "Second Quarter": 34727.0, "Third Quarter": 45608.0, "Fourth Quarter": 1707.0, "Total": 88848.0}, "Net income": {"First\nQuarter": 7401.0, "Second Quarter": 39193.0, "Third Quarter": 44075.0, "Fourth Quarter": 5304.0, "Total": 95973.0}, "Less: Net income attributable to noncontrolling\ninterests": {"First\nQuarter": 4502.0, "Second Quarter": 26877.0, "Third Quarter": 29349.0, "Fourth Quarter": 3265.0, "Total": 63993.0}, "Net income attributable to GreenSky, Inc.": {"First\nQuarter": 2899.0, "Second Quarter": 12316.0, "Third Quarter": 14726.0, "Fourth Quarter": 2039.0, "Total": 31980.0}, "Earnings per share of Class A common stock: -- Basic": {"First\nQuarter": 0.05, "Second Quarter": 0.2, "Third Quarter": 0.24, "Fourth Quarter": 0.03, "Total": 0.52}, "Earnings per share of Class A common stock: -- Diluted(1)": {"First\nQuarter": 0.05, "Second Quarter": 0.19, "Third Quarter": 0.23, "Fourth Quarter": 0.03, "Total": 0.49}}
operating_profit_4th_quarter = df["Operating profit"]["Fourth Quarter"]
operating_profit_3rd_quarter = df["Operating profit"]["Third Quarter"]
answer = operating_profit_4th_quarter - operating_profit_3rd_quarter