Finding the Fourth Proportional to 359,231.72, 495,729.17 and 198,086.73

Step by Step Solution

1. Step 1: Write the proportion equation
   359,231.72 : 495,729.17 = 198,086.73 : x
2. Step 2: Convert to fraction form
   359,231.72/495,729.17 = 198,086.73/x
3. Step 3: Cross multiply
   359,231.72x = 495,729.17 × 198,086.73
4. Step 4: Simplify right side
   359,231.72x = 98,197,368,980.72
5. Step 5: Solve for x
   x = 98,197,368,980.72/359,231.72
6. Step 6: Final answer
   x = 273,353.84