Finding the Fourth Proportional to 56,472.01, 77,940.71 and 31,329.61

Step by Step Solution

1. Step 1: Write the proportion equation
   56,472.01 : 77,940.71 = 31,329.61 : x
2. Step 2: Convert to fraction form
   56,472.01/77,940.71 = 31,329.61/x
3. Step 3: Cross multiply
   56,472.01x = 77,940.71 × 31,329.61
4. Step 4: Simplify right side
   56,472.01x = 2,441,851,890.78
5. Step 5: Solve for x
   x = 2,441,851,890.78/56,472.01
6. Step 6: Final answer
   x = 43,240.04