Finding the Fourth Proportional to 22,185.60, 30,616.38 and 12,114.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,185.60 : 30,616.38 = 12,114.15 : x
2. Step 2: Convert to fraction form
   22,185.60/30,616.38 = 12,114.15/x
3. Step 3: Cross multiply
   22,185.60x = 30,616.38 × 12,114.15
4. Step 4: Simplify right side
   22,185.60x = 370,891,419.78
5. Step 5: Solve for x
   x = 370,891,419.78/22,185.60
6. Step 6: Final answer
   x = 16,717.66