Answer:
$ 164,450
Explanation:
Opening  assets = $879,000
Opening liabilities = $ 749,500
Increase in Assets = $59,900
Increase in Liabilities = $24,950
Closing assets = Opening Assets + Increase in Assets
= $879,000 + $59,900
= $ 938,900
Closing Liabilities = Opening Liabilities + Increase in Liabilities
= $749,500 + $24,950
= $ 774,450
At the end of the current year,
Stockholder's Equity = Total Assets- Total Liabilities
                  = $ 938,900 -  $ 774,450
                  = $ 164,450