Finding the Fourth Proportional to 404,499.33, 558,320.09 and 234,788.13

Step by Step Solution

1. Step 1: Write the proportion equation
   404,499.33 : 558,320.09 = 234,788.13 : x
2. Step 2: Convert to fraction form
   404,499.33/558,320.09 = 234,788.13/x
3. Step 3: Cross multiply
   404,499.33x = 558,320.09 × 234,788.13
4. Step 4: Simplify right side
   404,499.33x = 131,086,929,872.53
5. Step 5: Solve for x
   x = 131,086,929,872.53/404,499.33
6. Step 6: Final answer
   x = 324,072.06