Finding the Fourth Proportional to 72,104.32, 99,505.97 and 39,841.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,104.32 : 99,505.97 = 39,841.02 : x
2. Step 2: Convert to fraction form
   72,104.32/99,505.97 = 39,841.02/x
3. Step 3: Cross multiply
   72,104.32x = 99,505.97 × 39,841.02
4. Step 4: Simplify right side
   72,104.32x = 3,964,419,340.89
5. Step 5: Solve for x
   x = 3,964,419,340.89/72,104.32
6. Step 6: Final answer
   x = 54,981.72