Finding the Fourth Proportional to 8,752.05, 13,066.92 and 8,659.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,752.05 : 13,066.92 = 8,659.71 : x
2. Step 2: Convert to fraction form
   8,752.05/13,066.92 = 8,659.71/x
3. Step 3: Cross multiply
   8,752.05x = 13,066.92 × 8,659.71
4. Step 4: Simplify right side
   8,752.05x = 113,155,737.79
5. Step 5: Solve for x
   x = 113,155,737.79/8,752.05
6. Step 6: Final answer
   x = 12,929.06