Finding the Fourth Proportional to 12,081.69, 16,636.05 and 10,717.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.69 : 16,636.05 = 10,717.65 : x
2. Step 2: Convert to fraction form
   12,081.69/16,636.05 = 10,717.65/x
3. Step 3: Cross multiply
   12,081.69x = 16,636.05 × 10,717.65
4. Step 4: Simplify right side
   12,081.69x = 178,299,361.28
5. Step 5: Solve for x
   x = 178,299,361.28/12,081.69
6. Step 6: Final answer
   x = 14,757.82