Final answer:
To determine the trial balance of the net income, subtract the sum of all expenses ($24,828) from the total revenue ($37,812). The resulting net income is $12,984.
Step-by-step explanation:
To calculate the net income from the trial balance, you need to subtract the total expenses from the total revenues. In this scenario, the total revenue is $37,812. The expenses are listed as $12,300, $4,400, and $8,128. Adding these expenses together gives us a total expense amount of $24,828.
Now, subtract the total expenses from the total revenues: $37,812 - $24,828 = $12,984. Therefore, the trial balance of the net income is $12,984.