Finding the Fourth Proportional to 22,151.48, 30,568.94 and 12,215.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,151.48 : 30,568.94 = 12,215.48 : x
2. Step 2: Convert to fraction form
   22,151.48/30,568.94 = 12,215.48/x
3. Step 3: Cross multiply
   22,151.48x = 30,568.94 × 12,215.48
4. Step 4: Simplify right side
   22,151.48x = 373,414,275.19
5. Step 5: Solve for x
   x = 373,414,275.19/22,151.48
6. Step 6: Final answer
   x = 16,857.31