Finding the Fourth Proportional to 72,457.47, 99,945.30 and 52,343.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,457.47 : 99,945.30 = 52,343.91 : x
2. Step 2: Convert to fraction form
   72,457.47/99,945.30 = 52,343.91/x
3. Step 3: Cross multiply
   72,457.47x = 99,945.30 × 52,343.91
4. Step 4: Simplify right side
   72,457.47x = 5,231,527,788.12
5. Step 5: Solve for x
   x = 5,231,527,788.12/72,457.47
6. Step 6: Final answer
   x = 72,201.36