Card value based on another column

Please Try This measure
_name =
VAR  _MAX =
MAX ( 'Table_name(1)'[_CLIENTEARNINGS] )
VAR MAX_NAME =
CALCULATE (
MAX ( 'Table_name'[_CLIENTEname] ),
FILTER ( 'Table_name', 'Table_name(1)'[_CLIENTEARNINGS] = _MAX )
)
RETURN
MAX_NAME

Hi Anonymous,

Please try this:
Result = var max_earning = max('tablename'[CLIENTEARNINGS])
 RETURN 

CALCULATE (
MAX ( 'Tablename'[CLIENTNAME] ),
FILTER ( 'Tablename', 'Tablename'[CLIENTEARNINGS] = max_earning )
)

Anonymous - Please mark it as a solution, if it helps you. Thanks. 

Regards,

TruptiS