Finding the Fourth Proportional to 8,414.56, 12,607.88 and 5,117.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,414.56 : 12,607.88 = 5,117.68 : x
2. Step 2: Convert to fraction form
   8,414.56/12,607.88 = 5,117.68/x
3. Step 3: Cross multiply
   8,414.56x = 12,607.88 × 5,117.68
4. Step 4: Simplify right side
   8,414.56x = 64,523,076.59
5. Step 5: Solve for x
   x = 64,523,076.59/8,414.56
6. Step 6: Final answer
   x = 7,668.03