human
Kirt has a $6000 monthly salary when he started his job. After a year of working, his salary increased by 30%. How much are his total earnings after 3 years?
assistant
How much was his annual salary in the first year? ** His annual salary for the first year of working is 6000 x 12= $<<6000*12=72000>>72000.
How much was his monthly increase? ** Kirt's monthly increase is $6000 x 30/100= $<<6000*30/100=1800>>1800.
How much was his monthly increase? ** So, he received $6000 + $1800= $<<6000+1800=7800>>7800 monthly on the second and third year of working.
How much was his annual salary in the second and third year? ** Kirt's annual salary in the second and third year was $7800 x 12 = $93600.
How much are his total earnings after 3 years? ** 
How much are his total earnings after 3 years? ** Thus, his total earning after 3 years is $72000 + $93600 + $93600 = $<<72000+93600+93600=259200>>259200.
#### 259200