At the end of the current year, Accounts Receivable has a balance of $4,770,000, Allowance for Doubtful Accounts has a debit balance of $17,230, and sales for the year total $63,800,000. Using the aging method, the balance of Allowance for Doubtful Accounts is estimated as $380,000 a. Determine the amount of the adjusting entry for uncollectible accounts. $ b. Determine the adjusted balances of Accounts Receivable, Allowance for Doubtful Accounts, and Bad Debt Expense. c. Determine the net realizable value of accounts receivable