Finding the Fourth Proportional to 404,645.86, 558,411.30 and 223,357.82

Step by Step Solution

1. Step 1: Write the proportion equation
   404,645.86 : 558,411.30 = 223,357.82 : x
2. Step 2: Convert to fraction form
   404,645.86/558,411.30 = 223,357.82/x
3. Step 3: Cross multiply
   404,645.86x = 558,411.30 × 223,357.82
4. Step 4: Simplify right side
   404,645.86x = 124,725,530,631.37
5. Step 5: Solve for x
   x = 124,725,530,631.37/404,645.86
6. Step 6: Final answer
   x = 308,233.80