Finding the Fourth Proportional to 495,503.92, 683,144.71 and 357,567.09

Step by Step Solution

1. Step 1: Write the proportion equation
   495,503.92 : 683,144.71 = 357,567.09 : x
2. Step 2: Convert to fraction form
   495,503.92/683,144.71 = 357,567.09/x
3. Step 3: Cross multiply
   495,503.92x = 683,144.71 × 357,567.09
4. Step 4: Simplify right side
   495,503.92x = 244,270,066,003.59
5. Step 5: Solve for x
   x = 244,270,066,003.59/495,503.92
6. Step 6: Final answer
   x = 492,973.02