Finding the Fourth Proportional to 22,108.86, 30,510.24 and 12,172.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,108.86 : 30,510.24 = 12,172.86 : x
2. Step 2: Convert to fraction form
   22,108.86/30,510.24 = 12,172.86/x
3. Step 3: Cross multiply
   22,108.86x = 30,510.24 × 12,172.86
4. Step 4: Simplify right side
   22,108.86x = 371,396,880.09
5. Step 5: Solve for x
   x = 371,396,880.09/22,108.86
6. Step 6: Final answer
   x = 16,798.55