Finding the Fourth Proportional to 404,338.94, 557,986.17 and 223,062.15

Step by Step Solution

1. Step 1: Write the proportion equation
   404,338.94 : 557,986.17 = 223,062.15 : x
2. Step 2: Convert to fraction form
   404,338.94/557,986.17 = 223,062.15/x
3. Step 3: Cross multiply
   404,338.94x = 557,986.17 × 223,062.15
4. Step 4: Simplify right side
   404,338.94x = 124,465,596,424.67
5. Step 5: Solve for x
   x = 124,465,596,424.67/404,338.94
6. Step 6: Final answer
   x = 307,824.91