Finding the Fourth Proportional to 72,288.59, 99,768.72 and 41,655.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,288.59 : 99,768.72 = 41,655.72 : x
2. Step 2: Convert to fraction form
   72,288.59/99,768.72 = 41,655.72/x
3. Step 3: Cross multiply
   72,288.59x = 99,768.72 × 41,655.72
4. Step 4: Simplify right side
   72,288.59x = 4,155,937,865.08
5. Step 5: Solve for x
   x = 4,155,937,865.08/72,288.59
6. Step 6: Final answer
   x = 57,490.93