Finding the Fourth Proportional to 22,258.16, 30,715.29 and 12,186.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,258.16 : 30,715.29 = 12,186.62 : x
2. Step 2: Convert to fraction form
   22,258.16/30,715.29 = 12,186.62/x
3. Step 3: Cross multiply
   22,258.16x = 30,715.29 × 12,186.62
4. Step 4: Simplify right side
   22,258.16x = 374,315,567.42
5. Step 5: Solve for x
   x = 374,315,567.42/22,258.16
6. Step 6: Final answer
   x = 16,817.00