Finding the Fourth Proportional to 72,023.10, 99,393.15 and 39,761.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,023.10 : 99,393.15 = 39,761.52 : x
2. Step 2: Convert to fraction form
   72,023.10/99,393.15 = 39,761.52/x
3. Step 3: Cross multiply
   72,023.10x = 99,393.15 × 39,761.52
4. Step 4: Simplify right side
   72,023.10x = 3,952,022,721.59
5. Step 5: Solve for x
   x = 3,952,022,721.59/72,023.10
6. Step 6: Final answer
   x = 54,871.60