Finding the Fourth Proportional to 11.05, 15.25 and 10.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11.05 : 15.25 = 10.34 : x
2. Step 2: Convert to fraction form
   11.05/15.25 = 10.34/x
3. Step 3: Cross multiply
   11.05x = 15.25 × 10.34
4. Step 4: Simplify right side
   11.05x = 157.69
5. Step 5: Solve for x
   x = 157.69/11.05
6. Step 6: Final answer
   x = 14.27