Finding the Fourth Proportional to 404,031.53, 557,567.40 and 222,750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,031.53 : 557,567.40 = 222,750.50 : x
2. Step 2: Convert to fraction form
   404,031.53/557,567.40 = 222,750.50/x
3. Step 3: Cross multiply
   404,031.53x = 557,567.40 × 222,750.50
4. Step 4: Simplify right side
   404,031.53x = 124,198,414,345.86
5. Step 5: Solve for x
   x = 124,198,414,345.86/404,031.53
6. Step 6: Final answer
   x = 307,397.83