Finding the Fourth Proportional to 8,147.43, 12,217.10 and 3,079.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,147.43 : 12,217.10 = 3,079.94 : x
2. Step 2: Convert to fraction form
   8,147.43/12,217.10 = 3,079.94/x
3. Step 3: Cross multiply
   8,147.43x = 12,217.10 × 3,079.94
4. Step 4: Simplify right side
   8,147.43x = 37,627,858.49
5. Step 5: Solve for x
   x = 37,627,858.49/8,147.43
6. Step 6: Final answer
   x = 4,618.37