Finding the Fourth Proportional to 12,013.89, 16,578.46 and 6,709.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.89 : 16,578.46 = 6,709.05 : x
2. Step 2: Convert to fraction form
   12,013.89/16,578.46 = 6,709.05/x
3. Step 3: Cross multiply
   12,013.89x = 16,578.46 × 6,709.05
4. Step 4: Simplify right side
   12,013.89x = 111,225,717.06
5. Step 5: Solve for x
   x = 111,225,717.06/12,013.89
6. Step 6: Final answer
   x = 9,258.09