Finding the Fourth Proportional to 10.72, 15.99 and 10.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10.72 : 15.99 = 10.27 : x
2. Step 2: Convert to fraction form
   10.72/15.99 = 10.27/x
3. Step 3: Cross multiply
   10.72x = 15.99 × 10.27
4. Step 4: Simplify right side
   10.72x = 164.20
5. Step 5: Solve for x
   x = 164.20/10.72
6. Step 6: Final answer
   x = 15.32