Finding the Fourth Proportional to 8,747.43, 13,113.41 and 5,979.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,747.43 : 13,113.41 = 5,979.39 : x
2. Step 2: Convert to fraction form
   8,747.43/13,113.41 = 5,979.39/x
3. Step 3: Cross multiply
   8,747.43x = 13,113.41 × 5,979.39
4. Step 4: Simplify right side
   8,747.43x = 78,410,162.72
5. Step 5: Solve for x
   x = 78,410,162.72/8,747.43
6. Step 6: Final answer
   x = 8,963.79