An aging of a company's accounts receivable indicates that $8900 are estimated to be uncollectible. If Allowance for Doubtful Accounts has a $4190 credit balance, the adjustment to record bad debts for the period will require a credit to Allowance for Doubtful Accounts for $8900. debit to Allowance for Doubtful Accounts for $4710. debit to Bad Debt Expense for $8900. debit to Bad Debt Expense for $4710