Finding the Fourth Proportional to 404,523, 558,241.98 and 225,675

Step by Step Solution

1. Step 1: Write the proportion equation
   404,523 : 558,241.98 = 225,675 : x
2. Step 2: Convert to fraction form
   404,523/558,241.98 = 225,675/x
3. Step 3: Cross multiply
   404,523x = 558,241.98 × 225,675
4. Step 4: Simplify right side
   404,523x = 125,981,258,836.50
5. Step 5: Solve for x
   x = 125,981,258,836.50/404,523
6. Step 6: Final answer
   x = 311,431.63