Finding the Fourth Proportional to 12,757.56, 17,613.54 and 8,222.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,757.56 : 17,613.54 = 8,222.22 : x
2. Step 2: Convert to fraction form
   12,757.56/17,613.54 = 8,222.22/x
3. Step 3: Cross multiply
   12,757.56x = 17,613.54 × 8,222.22
4. Step 4: Simplify right side
   12,757.56x = 144,822,400.86
5. Step 5: Solve for x
   x = 144,822,400.86/12,757.56
6. Step 6: Final answer
   x = 11,351.89