Finding the Fourth Proportional to 359,662.32, 496,333.53 and 198,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,662.32 : 496,333.53 = 198,517.50 : x
2. Step 2: Convert to fraction form
   359,662.32/496,333.53 = 198,517.50/x
3. Step 3: Cross multiply
   359,662.32x = 496,333.53 × 198,517.50
4. Step 4: Simplify right side
   359,662.32x = 98,530,891,541.78
5. Step 5: Solve for x
   x = 98,530,891,541.78/359,662.32
6. Step 6: Final answer
   x = 273,953.89