Finding the Fourth Proportional to 57,404.72, 79,213.92 and 31,909.08

Step by Step Solution

1. Step 1: Write the proportion equation
   57,404.72 : 79,213.92 = 31,909.08 : x
2. Step 2: Convert to fraction form
   57,404.72/79,213.92 = 31,909.08/x
3. Step 3: Cross multiply
   57,404.72x = 79,213.92 × 31,909.08
4. Step 4: Simplify right side
   57,404.72x = 2,527,643,310.39
5. Step 5: Solve for x
   x = 2,527,643,310.39/57,404.72
6. Step 6: Final answer
   x = 44,031.98