Finding the Fourth Proportional to 404,238.04, 557,851.15 and 222,954.88

Step by Step Solution

1. Step 1: Write the proportion equation
   404,238.04 : 557,851.15 = 222,954.88 : x
2. Step 2: Convert to fraction form
   404,238.04/557,851.15 = 222,954.88/x
3. Step 3: Cross multiply
   404,238.04x = 557,851.15 × 222,954.88
4. Step 4: Simplify right side
   404,238.04x = 124,375,636,136.15
5. Step 5: Solve for x
   x = 124,375,636,136.15/404,238.04
6. Step 6: Final answer
   x = 307,679.20