Finding the Fourth Proportional to 404,629.31, 558,388.50 and 223,341.29

Step by Step Solution

1. Step 1: Write the proportion equation
   404,629.31 : 558,388.50 = 223,341.29 : x
2. Step 2: Convert to fraction form
   404,629.31/558,388.50 = 223,341.29/x
3. Step 3: Cross multiply
   404,629.31x = 558,388.50 × 223,341.29
4. Step 4: Simplify right side
   404,629.31x = 124,711,206,794.46
5. Step 5: Solve for x
   x = 124,711,206,794.46/404,629.31
6. Step 6: Final answer
   x = 308,211.01