Finding the Fourth Proportional to 72,434.72, 99,962.64 and 40,604.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,434.72 : 99,962.64 = 40,604.24 : x
2. Step 2: Convert to fraction form
   72,434.72/99,962.64 = 40,604.24/x
3. Step 3: Cross multiply
   72,434.72x = 99,962.64 × 40,604.24
4. Step 4: Simplify right side
   72,434.72x = 4,058,907,025.59
5. Step 5: Solve for x
   x = 4,058,907,025.59/72,434.72
6. Step 6: Final answer
   x = 56,035.38