Finding the Fourth Proportional to 72,150.41, 99,553.32 and 40,313.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,150.41 : 99,553.32 = 40,313.16 : x
2. Step 2: Convert to fraction form
   72,150.41/99,553.32 = 40,313.16/x
3. Step 3: Cross multiply
   72,150.41x = 99,553.32 × 40,313.16
4. Step 4: Simplify right side
   72,150.41x = 4,013,308,917.69
5. Step 5: Solve for x
   x = 4,013,308,917.69/72,150.41
6. Step 6: Final answer
   x = 55,624.20