Finding the Fourth Proportional to 309,185.28, 463,755.24 and 98,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,185.28 : 463,755.24 = 98,766.72 : x
2. Step 2: Convert to fraction form
   309,185.28/463,755.24 = 98,766.72/x
3. Step 3: Cross multiply
   309,185.28x = 463,755.24 × 98,766.72
4. Step 4: Simplify right side
   309,185.28x = 45,803,583,937.61
5. Step 5: Solve for x
   x = 45,803,583,937.61/309,185.28
6. Step 6: Final answer
   x = 148,142.84