Finding the Fourth Proportional to 404,131.50, 557,724.96 and 222,881.99

Step by Step Solution

1. Step 1: Write the proportion equation
   404,131.50 : 557,724.96 = 222,881.99 : x
2. Step 2: Convert to fraction form
   404,131.50/557,724.96 = 222,881.99/x
3. Step 3: Cross multiply
   404,131.50x = 557,724.96 × 222,881.99
4. Step 4: Simplify right side
   404,131.50x = 124,306,846,168.85
5. Step 5: Solve for x
   x = 124,306,846,168.85/404,131.50
6. Step 6: Final answer
   x = 307,590.09