Finding the Fourth Proportional to 16.55, 22.83 and 10.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16.55 : 22.83 = 10.72 : x
2. Step 2: Convert to fraction form
   16.55/22.83 = 10.72/x
3. Step 3: Cross multiply
   16.55x = 22.83 × 10.72
4. Step 4: Simplify right side
   16.55x = 244.69
5. Step 5: Solve for x
   x = 244.69/16.55
6. Step 6: Final answer
   x = 14.79