Finding the Fourth Proportional to 72,354.39, 99,839.58 and 41,728.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,354.39 : 99,839.58 = 41,728.62 : x
2. Step 2: Convert to fraction form
   72,354.39/99,839.58 = 41,728.62/x
3. Step 3: Cross multiply
   72,354.39x = 99,839.58 × 41,728.62
4. Step 4: Simplify right side
   72,354.39x = 4,166,167,894.78
5. Step 5: Solve for x
   x = 4,166,167,894.78/72,354.39
6. Step 6: Final answer
   x = 57,580.03