Finding the Fourth Proportional to 8,132.25, 12,198.72 and 2,799.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,132.25 : 12,198.72 = 2,799.09 : x
2. Step 2: Convert to fraction form
   8,132.25/12,198.72 = 2,799.09/x
3. Step 3: Cross multiply
   8,132.25x = 12,198.72 × 2,799.09
4. Step 4: Simplify right side
   8,132.25x = 34,145,315.16
5. Step 5: Solve for x
   x = 34,145,315.16/8,132.25
6. Step 6: Final answer
   x = 4,198.75