Finding the Fourth Proportional to 12,013.71, 16,578.96 and 6,708.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.71 : 16,578.96 = 6,708.72 : x
2. Step 2: Convert to fraction form
   12,013.71/16,578.96 = 6,708.72/x
3. Step 3: Cross multiply
   12,013.71x = 16,578.96 × 6,708.72
4. Step 4: Simplify right side
   12,013.71x = 111,223,600.53
5. Step 5: Solve for x
   x = 111,223,600.53/12,013.71
6. Step 6: Final answer
   x = 9,258.06