Finding the Fourth Proportional to 404,020.55, 557,552.65 and 222,738.96

Step by Step Solution

1. Step 1: Write the proportion equation
   404,020.55 : 557,552.65 = 222,738.96 : x
2. Step 2: Convert to fraction form
   404,020.55/557,552.65 = 222,738.96/x
3. Step 3: Cross multiply
   404,020.55x = 557,552.65 × 222,738.96
4. Step 4: Simplify right side
   404,020.55x = 124,188,699,357.86
5. Step 5: Solve for x
   x = 124,188,699,357.86/404,020.55
6. Step 6: Final answer
   x = 307,382.14