Finding the Fourth Proportional to 404,845.96, 558,691.86 and 223,557.52

Step by Step Solution

1. Step 1: Write the proportion equation
   404,845.96 : 558,691.86 = 223,557.52 : x
2. Step 2: Convert to fraction form
   404,845.96/558,691.86 = 223,557.52/x
3. Step 3: Cross multiply
   404,845.96x = 558,691.86 × 223,557.52
4. Step 4: Simplify right side
   404,845.96x = 124,899,766,665.79
5. Step 5: Solve for x
   x = 124,899,766,665.79/404,845.96
6. Step 6: Final answer
   x = 308,511.83