Finding the Fourth Proportional to 11,706.72, 17,475.25 and 10,839.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,706.72 : 17,475.25 = 10,839.62 : x
2. Step 2: Convert to fraction form
   11,706.72/17,475.25 = 10,839.62/x
3. Step 3: Cross multiply
   11,706.72x = 17,475.25 × 10,839.62
4. Step 4: Simplify right side
   11,706.72x = 189,425,015.21
5. Step 5: Solve for x
   x = 189,425,015.21/11,706.72
6. Step 6: Final answer
   x = 16,180.88