Finding the Fourth Proportional to 13,076.62, 19,612.86 and 5,679.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,076.62 : 19,612.86 = 5,679.10 : x
2. Step 2: Convert to fraction form
   13,076.62/19,612.86 = 5,679.10/x
3. Step 3: Cross multiply
   13,076.62x = 19,612.86 × 5,679.10
4. Step 4: Simplify right side
   13,076.62x = 111,383,295.16
5. Step 5: Solve for x
   x = 111,383,295.16/13,076.62
6. Step 6: Final answer
   x = 8,517.74