Finding the Fourth Proportional to 22,115.16, 30,517.56 and 12,683.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,115.16 : 30,517.56 = 12,683.52 : x
2. Step 2: Convert to fraction form
   22,115.16/30,517.56 = 12,683.52/x
3. Step 3: Cross multiply
   22,115.16x = 30,517.56 × 12,683.52
4. Step 4: Simplify right side
   22,115.16x = 387,070,082.61
5. Step 5: Solve for x
   x = 387,070,082.61/22,115.16
6. Step 6: Final answer
   x = 17,502.48