Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_52 ( ccbs INTEGER, launches_to_date VARCHAR, payload_to_gto VARCHAR )

### Question ###
What is the greatest CCBs with Launches to date of 4, and a Payload to GTO of 8,900kg?

### Accurate SQL ###

SELECT MAX(ccbs) FROM table_name_52 WHERE launches_to_date = 4 AND payload_to_gto = "8,900kg"