Finding the Fourth Proportional to 404,645.98, 558,411.48 and 223,357.96

Step by Step Solution

1. Step 1: Write the proportion equation
   404,645.98 : 558,411.48 = 223,357.96 : x
2. Step 2: Convert to fraction form
   404,645.98/558,411.48 = 223,357.96/x
3. Step 3: Cross multiply
   404,645.98x = 558,411.48 × 223,357.96
4. Step 4: Simplify right side
   404,645.98x = 124,725,649,013.38
5. Step 5: Solve for x
   x = 124,725,649,013.38/404,645.98
6. Step 6: Final answer
   x = 308,234.00