Finding the Fourth Proportional to 57,121.27, 78,824.76 and 31,625.83

Step by Step Solution

1. Step 1: Write the proportion equation
   57,121.27 : 78,824.76 = 31,625.83 : x
2. Step 2: Convert to fraction form
   57,121.27/78,824.76 = 31,625.83/x
3. Step 3: Cross multiply
   57,121.27x = 78,824.76 × 31,625.83
4. Step 4: Simplify right side
   57,121.27x = 2,492,898,459.55
5. Step 5: Solve for x
   x = 2,492,898,459.55/57,121.27
6. Step 6: Final answer
   x = 43,642.21