Finding the Fourth Proportional to 12,212.29, 16,854.96 and 10,222.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,212.29 : 16,854.96 = 10,222.12 : x
2. Step 2: Convert to fraction form
   12,212.29/16,854.96 = 10,222.12/x
3. Step 3: Cross multiply
   12,212.29x = 16,854.96 × 10,222.12
4. Step 4: Simplify right side
   12,212.29x = 172,293,423.72
5. Step 5: Solve for x
   x = 172,293,423.72/12,212.29
6. Step 6: Final answer
   x = 14,108.20