Finding the Fourth Proportional to 8,166.59, 12,249.94 and 2,619.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,166.59 : 12,249.94 = 2,619.94 : x
2. Step 2: Convert to fraction form
   8,166.59/12,249.94 = 2,619.94/x
3. Step 3: Cross multiply
   8,166.59x = 12,249.94 × 2,619.94
4. Step 4: Simplify right side
   8,166.59x = 32,094,046.55
5. Step 5: Solve for x
   x = 32,094,046.55/8,166.59
6. Step 6: Final answer
   x = 3,929.92