Finding the Fourth Proportional to 31,081.98, 42,893.11 and 16,934.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.98 : 42,893.11 = 16,934.93 : x
2. Step 2: Convert to fraction form
   31,081.98/42,893.11 = 16,934.93/x
3. Step 3: Cross multiply
   31,081.98x = 42,893.11 × 16,934.93
4. Step 4: Simplify right side
   31,081.98x = 726,391,815.33
5. Step 5: Solve for x
   x = 726,391,815.33/31,081.98
6. Step 6: Final answer
   x = 23,370.19