Finding the Fourth Proportional to 22,185.29, 30,615.87 and 12,113.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,185.29 : 30,615.87 = 12,113.55 : x
2. Step 2: Convert to fraction form
   22,185.29/30,615.87 = 12,113.55/x
3. Step 3: Cross multiply
   22,185.29x = 30,615.87 × 12,113.55
4. Step 4: Simplify right side
   22,185.29x = 370,866,917.46
5. Step 5: Solve for x
   x = 370,866,917.46/22,185.29
6. Step 6: Final answer
   x = 16,716.79