Finding the Fourth Proportional to 22,180.15, 30,608.31 and 12,108.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,180.15 : 30,608.31 = 12,108.61 : x
2. Step 2: Convert to fraction form
   22,180.15/30,608.31 = 12,108.61/x
3. Step 3: Cross multiply
   22,180.15x = 30,608.31 × 12,108.61
4. Step 4: Simplify right side
   22,180.15x = 370,624,088.55
5. Step 5: Solve for x
   x = 370,624,088.55/22,180.15
6. Step 6: Final answer
   x = 16,709.72