Finding the Fourth Proportional to 443,397.38, 611,853.54 and 249,796.55

Step by Step Solution

1. Step 1: Write the proportion equation
   443,397.38 : 611,853.54 = 249,796.55 : x
2. Step 2: Convert to fraction form
   443,397.38/611,853.54 = 249,796.55/x
3. Step 3: Cross multiply
   443,397.38x = 611,853.54 × 249,796.55
4. Step 4: Simplify right side
   443,397.38x = 152,838,900,338.02
5. Step 5: Solve for x
   x = 152,838,900,338.02/443,397.38
6. Step 6: Final answer
   x = 344,699.61