Finding the Fourth Proportional to 404,155.92, 557,709.39 and 222,869.01

Step by Step Solution

1. Step 1: Write the proportion equation
   404,155.92 : 557,709.39 = 222,869.01 : x
2. Step 2: Convert to fraction form
   404,155.92/557,709.39 = 222,869.01/x
3. Step 3: Cross multiply
   404,155.92x = 557,709.39 × 222,869.01
4. Step 4: Simplify right side
   404,155.92x = 124,296,139,617.00
5. Step 5: Solve for x
   x = 124,296,139,617.00/404,155.92
6. Step 6: Final answer
   x = 307,545.02