Finding the Fourth Proportional to 10.10, 15.28 and 10.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10.10 : 15.28 = 10.10 : x
2. Step 2: Convert to fraction form
   10.10/15.28 = 10.10/x
3. Step 3: Cross multiply
   10.10x = 15.28 × 10.10
4. Step 4: Simplify right side
   10.10x = 154.34
5. Step 5: Solve for x
   x = 154.34/10.10
6. Step 6: Final answer
   x = 15.28