Finding the Fourth Proportional to 72,234.16, 99,475.23 and 59,542.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,234.16 : 99,475.23 = 59,542.28 : x
2. Step 2: Convert to fraction form
   72,234.16/99,475.23 = 59,542.28/x
3. Step 3: Cross multiply
   72,234.16x = 99,475.23 × 59,542.28
4. Step 4: Simplify right side
   72,234.16x = 5,922,981,997.72
5. Step 5: Solve for x
   x = 5,922,981,997.72/72,234.16
6. Step 6: Final answer
   x = 81,996.97