Finding the Fourth Proportional to 404,135.69, 557,695.32 and 222,847.57

Step by Step Solution

1. Step 1: Write the proportion equation
   404,135.69 : 557,695.32 = 222,847.57 : x
2. Step 2: Convert to fraction form
   404,135.69/557,695.32 = 222,847.57/x
3. Step 3: Cross multiply
   404,135.69x = 557,695.32 × 222,847.57
4. Step 4: Simplify right side
   404,135.69x = 124,281,045,116.22
5. Step 5: Solve for x
   x = 124,281,045,116.22/404,135.69
6. Step 6: Final answer
   x = 307,523.06