Finding the Fourth Proportional to 10,514.29, 15,843.79 and 8,706.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,514.29 : 15,843.79 = 8,706.10 : x
2. Step 2: Convert to fraction form
   10,514.29/15,843.79 = 8,706.10/x
3. Step 3: Cross multiply
   10,514.29x = 15,843.79 × 8,706.10
4. Step 4: Simplify right side
   10,514.29x = 137,937,620.12
5. Step 5: Solve for x
   x = 137,937,620.12/10,514.29
6. Step 6: Final answer
   x = 13,119.06