Finding the Fourth Proportional to 10,687.53, 16,104.25 and 8,782.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.53 : 16,104.25 = 8,782.41 : x
2. Step 2: Convert to fraction form
   10,687.53/16,104.25 = 8,782.41/x
3. Step 3: Cross multiply
   10,687.53x = 16,104.25 × 8,782.41
4. Step 4: Simplify right side
   10,687.53x = 141,434,104.29
5. Step 5: Solve for x
   x = 141,434,104.29/10,687.53
6. Step 6: Final answer
   x = 13,233.56