Finding the Fourth Proportional to 404,047.72, 557,589.72 and 222,766.12

Step by Step Solution

1. Step 1: Write the proportion equation
   404,047.72 : 557,589.72 = 222,766.12 : x
2. Step 2: Convert to fraction form
   404,047.72/557,589.72 = 222,766.12/x
3. Step 3: Cross multiply
   404,047.72x = 557,589.72 × 222,766.12
4. Step 4: Simplify right side
   404,047.72x = 124,212,098,476.29
5. Step 5: Solve for x
   x = 124,212,098,476.29/404,047.72
6. Step 6: Final answer
   x = 307,419.38