Finding the Fourth Proportional to 31,086.88, 42,898.92 and 17,657.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,086.88 : 42,898.92 = 17,657.08 : x
2. Step 2: Convert to fraction form
   31,086.88/42,898.92 = 17,657.08/x
3. Step 3: Cross multiply
   31,086.88x = 42,898.92 × 17,657.08
4. Step 4: Simplify right side
   31,086.88x = 757,469,662.35
5. Step 5: Solve for x
   x = 757,469,662.35/31,086.88
6. Step 6: Final answer
   x = 24,366.22