Finding the Fourth Proportional to 22,708.24, 31,341.72 and 12,772.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,708.24 : 31,341.72 = 12,772.24 : x
2. Step 2: Convert to fraction form
   22,708.24/31,341.72 = 12,772.24/x
3. Step 3: Cross multiply
   22,708.24x = 31,341.72 × 12,772.24
4. Step 4: Simplify right side
   22,708.24x = 400,303,969.85
5. Step 5: Solve for x
   x = 400,303,969.85/22,708.24
6. Step 6: Final answer
   x = 17,628.14