Finding the Fourth Proportional to 359,225.55, 495,734.72 and 198,086.31

Step by Step Solution

1. Step 1: Write the proportion equation
   359,225.55 : 495,734.72 = 198,086.31 : x
2. Step 2: Convert to fraction form
   359,225.55/495,734.72 = 198,086.31/x
3. Step 3: Cross multiply
   359,225.55x = 495,734.72 × 198,086.31
4. Step 4: Simplify right side
   359,225.55x = 98,198,260,433.25
5. Step 5: Solve for x
   x = 98,198,260,433.25/359,225.55
6. Step 6: Final answer
   x = 273,361.01