Finding the Fourth Proportional to 72,292.91, 99,763.18 and 40,024.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,292.91 : 99,763.18 = 40,024.43 : x
2. Step 2: Convert to fraction form
   72,292.91/99,763.18 = 40,024.43/x
3. Step 3: Cross multiply
   72,292.91x = 99,763.18 × 40,024.43
4. Step 4: Simplify right side
   72,292.91x = 3,992,964,189.72
5. Step 5: Solve for x
   x = 3,992,964,189.72/72,292.91
6. Step 6: Final answer
   x = 55,233.14