Finding the Fourth Proportional to 81,272.88, 112,151.32 and 45,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,272.88 : 112,151.32 = 45,456.72 : x
2. Step 2: Convert to fraction form
   81,272.88/112,151.32 = 45,456.72/x
3. Step 3: Cross multiply
   81,272.88x = 112,151.32 × 45,456.72
4. Step 4: Simplify right side
   81,272.88x = 5,098,031,150.87
5. Step 5: Solve for x
   x = 5,098,031,150.87/81,272.88
6. Step 6: Final answer
   x = 62,727.33