Finding the Fourth Proportional to 404,082.28, 557,595.48 and 234,298

Step by Step Solution

1. Step 1: Write the proportion equation
   404,082.28 : 557,595.48 = 234,298 : x
2. Step 2: Convert to fraction form
   404,082.28/557,595.48 = 234,298/x
3. Step 3: Cross multiply
   404,082.28x = 557,595.48 × 234,298
4. Step 4: Simplify right side
   404,082.28x = 130,643,505,773.04
5. Step 5: Solve for x
   x = 130,643,505,773.04/404,082.28
6. Step 6: Final answer
   x = 323,309.17