Finding the Fourth Proportional to 10,266.88, 14,168.33 and 5,551.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,266.88 : 14,168.33 = 5,551.20 : x
2. Step 2: Convert to fraction form
   10,266.88/14,168.33 = 5,551.20/x
3. Step 3: Cross multiply
   10,266.88x = 14,168.33 × 5,551.20
4. Step 4: Simplify right side
   10,266.88x = 78,651,233.50
5. Step 5: Solve for x
   x = 78,651,233.50/10,266.88
6. Step 6: Final answer
   x = 7,660.68