Finding the Fourth Proportional to 404,800.50, 558,633.57 and 223,511.94

Step by Step Solution

1. Step 1: Write the proportion equation
   404,800.50 : 558,633.57 = 223,511.94 : x
2. Step 2: Convert to fraction form
   404,800.50/558,633.57 = 223,511.94/x
3. Step 3: Cross multiply
   404,800.50x = 558,633.57 × 223,511.94
4. Step 4: Simplify right side
   404,800.50x = 124,861,272,979.83
5. Step 5: Solve for x
   x = 124,861,272,979.83/404,800.50
6. Step 6: Final answer
   x = 308,451.38