Finding the Fourth Proportional to 31,023.96, 42,813.39 and 16,876.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,023.96 : 42,813.39 = 16,876.83 : x
2. Step 2: Convert to fraction form
   31,023.96/42,813.39 = 16,876.83/x
3. Step 3: Cross multiply
   31,023.96x = 42,813.39 × 16,876.83
4. Step 4: Simplify right side
   31,023.96x = 722,554,304.75
5. Step 5: Solve for x
   x = 722,554,304.75/31,023.96
6. Step 6: Final answer
   x = 23,290.20