Finding the Fourth Proportional to 402,025.91, 555,055.38 and 249,227.39

Step by Step Solution

1. Step 1: Write the proportion equation
   402,025.91 : 555,055.38 = 249,227.39 : x
2. Step 2: Convert to fraction form
   402,025.91/555,055.38 = 249,227.39/x
3. Step 3: Cross multiply
   402,025.91x = 555,055.38 × 249,227.39
4. Step 4: Simplify right side
   402,025.91x = 138,335,005,050.50
5. Step 5: Solve for x
   x = 138,335,005,050.50/402,025.91
6. Step 6: Final answer
   x = 344,094.75