Exercise 3-12A Using a T-account to determine cash flow from operating activities LO 3-1 River Co. began the accounting period with a $73,500 debit balance in its Accounts Receivable account. During the accounting period, River Co. earned revenue on account of $318,900. The ending Accounts Receivable balance was $63,700. Required Based on this information alone, determine the amount of cash inflow from operating activities during the accounting period. (Hint: Use a T-account for Accounts Receivable. Enter the debits and credits for the given events, and solve for the missing amount.) Cash inflow from operating activities