Finding the Fourth Proportional to 404,730.53, 558,513.50 and 223,438.59

Step by Step Solution

1. Step 1: Write the proportion equation
   404,730.53 : 558,513.50 = 223,438.59 : x
2. Step 2: Convert to fraction form
   404,730.53/558,513.50 = 223,438.59/x
3. Step 3: Cross multiply
   404,730.53x = 558,513.50 × 223,438.59
4. Step 4: Simplify right side
   404,730.53x = 124,793,471,039.02
5. Step 5: Solve for x
   x = 124,793,471,039.02/404,730.53
6. Step 6: Final answer
   x = 308,337.18