Finding the Fourth Proportional to 8,144.78, 12,196.02 and 6,982.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,144.78 : 12,196.02 = 6,982.22 : x
2. Step 2: Convert to fraction form
   8,144.78/12,196.02 = 6,982.22/x
3. Step 3: Cross multiply
   8,144.78x = 12,196.02 × 6,982.22
4. Step 4: Simplify right side
   8,144.78x = 85,155,294.76
5. Step 5: Solve for x
   x = 85,155,294.76/8,144.78
6. Step 6: Final answer
   x = 10,455.20