Finding the Fourth Proportional to 15,757, 21,744.42 and 8,683.24

Step by Step Solution

1. Step 1: Write the proportion equation
   15,757 : 21,744.42 = 8,683.24 : x
2. Step 2: Convert to fraction form
   15,757/21,744.42 = 8,683.24/x
3. Step 3: Cross multiply
   15,757x = 21,744.42 × 8,683.24
4. Step 4: Simplify right side
   15,757x = 188,812,017.52
5. Step 5: Solve for x
   x = 188,812,017.52/15,757
6. Step 6: Final answer
   x = 11,982.74