Finding the Fourth Proportional to 404,016.30, 557,546.10 and 222,734.62

Step by Step Solution

1. Step 1: Write the proportion equation
   404,016.30 : 557,546.10 = 222,734.62 : x
2. Step 2: Convert to fraction form
   404,016.30/557,546.10 = 222,734.62/x
3. Step 3: Cross multiply
   404,016.30x = 557,546.10 × 222,734.62
4. Step 4: Simplify right side
   404,016.30x = 124,184,815,928.25
5. Step 5: Solve for x
   x = 124,184,815,928.25/404,016.30
6. Step 6: Final answer
   x = 307,375.76