Finding the Fourth Proportional to 31,182.24, 43,067.37 and 22,722.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,182.24 : 43,067.37 = 22,722.20 : x
2. Step 2: Convert to fraction form
   31,182.24/43,067.37 = 22,722.20/x
3. Step 3: Cross multiply
   31,182.24x = 43,067.37 × 22,722.20
4. Step 4: Simplify right side
   31,182.24x = 978,585,394.61
5. Step 5: Solve for x
   x = 978,585,394.61/31,182.24
6. Step 6: Final answer
   x = 31,382.78