Finding the Fourth Proportional to 404,651.69, 558,419.24 and 223,363.57

Step by Step Solution

1. Step 1: Write the proportion equation
   404,651.69 : 558,419.24 = 223,363.57 : x
2. Step 2: Convert to fraction form
   404,651.69/558,419.24 = 223,363.57/x
3. Step 3: Cross multiply
   404,651.69x = 558,419.24 × 223,363.57
4. Step 4: Simplify right side
   404,651.69x = 124,730,515,003.09
5. Step 5: Solve for x
   x = 124,730,515,003.09/404,651.69
6. Step 6: Final answer
   x = 308,241.68