4. Upton Computers makes bulk purchases of small computers, stocks them in conveniently located warehouses, and ships them to its chain of retail st Upton's balance sheet as of December 31, 2006 is shown here (millions dollars) 3.5 Accounts payable 26.0 Notes payable 58.0Accruals $ 9.0 18.0 8.5 Total current liabilities 35.5 6.0 15.0 66.0 Total liabilities and equity S122.4 as Receivables Inventories Total current assets 87.5 Net fixed assets 35.0 Mortgage loan Common stock Retained earnings Total assets $122.5 ales for 2006 were $350 million, while net income for the year was $10.5 million. Upton paid dividends of $4.2 firm million to common stockholders. The is operating at full capacity. Assume that all ratios remain constant. a. If sales are projected to increase by $70 million, or 20 percent during 2007, determine Upton's projected external capital requirements. b. Determine Upton's projected external capital requirement if the increase in sales is expected to be carried out without any expansion of fixed assets. c. How much can sales grow above 2006 of $350 million without requiring any additional funds