Finding the Fourth Proportional to 31,081.39, 42,892.27 and 16,934.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.39 : 42,892.27 = 16,934.27 : x
2. Step 2: Convert to fraction form
   31,081.39/42,892.27 = 16,934.27/x
3. Step 3: Cross multiply
   31,081.39x = 42,892.27 × 16,934.27
4. Step 4: Simplify right side
   31,081.39x = 726,349,024.30
5. Step 5: Solve for x
   x = 726,349,024.30/31,081.39
6. Step 6: Final answer
   x = 23,369.26