Finding the Fourth Proportional to 353,298.10, 495,861.50 and 353,298.10

Step by Step Solution

1. Step 1: Write the proportion equation
   353,298.10 : 495,861.50 = 353,298.10 : x
2. Step 2: Convert to fraction form
   353,298.10/495,861.50 = 353,298.10/x
3. Step 3: Cross multiply
   353,298.10x = 495,861.50 × 353,298.10
4. Step 4: Simplify right side
   353,298.10x = 175,186,925,813.15
5. Step 5: Solve for x
   x = 175,186,925,813.15/353,298.10
6. Step 6: Final answer
   x = 495,861.50