Certain information relative to the 2012 operations of Ball Co. follows:
Accounts receivable, January 1, 2012 $48,000
Accounts receivable collected during 2012 92,000
Cash sales during 2012 24,000
Inventory, January 1, 2012 36,000
Inventory, December 31, 2012 33,000
Purchases of inventory during 2012 80,000
Gross profit on sales 27,000
What is Ball's accounts receivable balance at December 31, 2012?