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_22281 ( "Round" text, "Clubs remaining" real, "Clubs involved" real, "Winners from previous round" text, "New entries this round" text, "Leagues entering at this round" text )

### Question ###
How many clubs remain in the fourth round?

### Accurate SQL ###

SELECT MIN("Clubs remaining") FROM table_22281 WHERE "Round" = 'Fourth round'