Finding the Fourth Proportional to 404,171.86, 557,753.78 and 222,891.34

Step by Step Solution

1. Step 1: Write the proportion equation
   404,171.86 : 557,753.78 = 222,891.34 : x
2. Step 2: Convert to fraction form
   404,171.86/557,753.78 = 222,891.34/x
3. Step 3: Cross multiply
   404,171.86x = 557,753.78 × 222,891.34
4. Step 4: Simplify right side
   404,171.86x = 124,318,487,414.27
5. Step 5: Solve for x
   x = 124,318,487,414.27/404,171.86
6. Step 6: Final answer
   x = 307,588.18