Finding the Fourth Proportional to 404,141.20, 557,748.06 and 222,888.58

Step by Step Solution

1. Step 1: Write the proportion equation
   404,141.20 : 557,748.06 = 222,888.58 : x
2. Step 2: Convert to fraction form
   404,141.20/557,748.06 = 222,888.58/x
3. Step 3: Cross multiply
   404,141.20x = 557,748.06 × 222,888.58
4. Step 4: Simplify right side
   404,141.20x = 124,315,673,091.16
5. Step 5: Solve for x
   x = 124,315,673,091.16/404,141.20
6. Step 6: Final answer
   x = 307,604.55