Finding the Fourth Proportional to 404,607.86, 558,582.57 and 243,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,607.86 : 558,582.57 = 243,502.50 : x
2. Step 2: Convert to fraction form
   404,607.86/558,582.57 = 243,502.50/x
3. Step 3: Cross multiply
   404,607.86x = 558,582.57 × 243,502.50
4. Step 4: Simplify right side
   404,607.86x = 136,016,252,251.43
5. Step 5: Solve for x
   x = 136,016,252,251.43/404,607.86
6. Step 6: Final answer
   x = 336,168.10