Finding the Fourth Proportional to 404,082.78, 557,596.17 and 234,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,082.78 : 557,596.17 = 234,298.50 : x
2. Step 2: Convert to fraction form
   404,082.78/557,596.17 = 234,298.50/x
3. Step 3: Cross multiply
   404,082.78x = 557,596.17 × 234,298.50
4. Step 4: Simplify right side
   404,082.78x = 130,643,946,236.75
5. Step 5: Solve for x
   x = 130,643,946,236.75/404,082.78
6. Step 6: Final answer
   x = 323,309.86