Finding the Fourth Proportional to 8,196.87, 12,292.68 and 3,515.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.87 : 12,292.68 = 3,515.61 : x
2. Step 2: Convert to fraction form
   8,196.87/12,292.68 = 3,515.61/x
3. Step 3: Cross multiply
   8,196.87x = 12,292.68 × 3,515.61
4. Step 4: Simplify right side
   8,196.87x = 43,216,268.73
5. Step 5: Solve for x
   x = 43,216,268.73/8,196.87
6. Step 6: Final answer
   x = 5,272.29