Finding the Fourth Proportional to 461,456.50, 636,809.97 and 249,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   461,456.50 : 636,809.97 = 249,488.50 : x
2. Step 2: Convert to fraction form
   461,456.50/636,809.97 = 249,488.50/x
3. Step 3: Cross multiply
   461,456.50x = 636,809.97 × 249,488.50
4. Step 4: Simplify right side
   461,456.50x = 158,876,764,200.35
5. Step 5: Solve for x
   x = 158,876,764,200.35/461,456.50
6. Step 6: Final answer
   x = 344,294.13