Finding the Fourth Proportional to 31,250.72, 43,126.10 and 16,910.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,250.72 : 43,126.10 = 16,910.55 : x
2. Step 2: Convert to fraction form
   31,250.72/43,126.10 = 16,910.55/x
3. Step 3: Cross multiply
   31,250.72x = 43,126.10 × 16,910.55
4. Step 4: Simplify right side
   31,250.72x = 729,285,941.89
5. Step 5: Solve for x
   x = 729,285,941.89/31,250.72
6. Step 6: Final answer
   x = 23,336.62