Finding the Fourth Proportional to 15,756.27, 21,743.62 and 8,682.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,756.27 : 21,743.62 = 8,682.69 : x
2. Step 2: Convert to fraction form
   15,756.27/21,743.62 = 8,682.69/x
3. Step 3: Cross multiply
   15,756.27x = 21,743.62 × 8,682.69
4. Step 4: Simplify right side
   15,756.27x = 188,793,111.94
5. Step 5: Solve for x
   x = 188,793,111.94/15,756.27
6. Step 6: Final answer
   x = 11,982.09