Finding the Fourth Proportional to 404,153.31, 557,745.04 and 220,401.94

Step by Step Solution

1. Step 1: Write the proportion equation
   404,153.31 : 557,745.04 = 220,401.94 : x
2. Step 2: Convert to fraction form
   404,153.31/557,745.04 = 220,401.94/x
3. Step 3: Cross multiply
   404,153.31x = 557,745.04 × 220,401.94
4. Step 4: Simplify right side
   404,153.31x = 122,928,086,896.01
5. Step 5: Solve for x
   x = 122,928,086,896.01/404,153.31
6. Step 6: Final answer
   x = 304,162.02