Finding the Fourth Proportional to 404,647.98, 558,414.25 and 223,359.96

Step by Step Solution

1. Step 1: Write the proportion equation
   404,647.98 : 558,414.25 = 223,359.96 : x
2. Step 2: Convert to fraction form
   404,647.98/558,414.25 = 223,359.96/x
3. Step 3: Cross multiply
   404,647.98x = 558,414.25 × 223,359.96
4. Step 4: Simplify right side
   404,647.98x = 124,727,384,543.43
5. Step 5: Solve for x
   x = 124,727,384,543.43/404,647.98
6. Step 6: Final answer
   x = 308,236.77