Finding the Fourth Proportional to 22,146.50, 30,562.17 and 12,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,146.50 : 30,562.17 = 12,210.50 : x
2. Step 2: Convert to fraction form
   22,146.50/30,562.17 = 12,210.50/x
3. Step 3: Cross multiply
   22,146.50x = 30,562.17 × 12,210.50
4. Step 4: Simplify right side
   22,146.50x = 373,179,376.79
5. Step 5: Solve for x
   x = 373,179,376.79/22,146.50
6. Step 6: Final answer
   x = 16,850.49