Finding the Fourth Proportional to 11.42, 15.76 and 10.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11.42 : 15.76 = 10.88 : x
2. Step 2: Convert to fraction form
   11.42/15.76 = 10.88/x
3. Step 3: Cross multiply
   11.42x = 15.76 × 10.88
4. Step 4: Simplify right side
   11.42x = 171.47
5. Step 5: Solve for x
   x = 171.47/11.42
6. Step 6: Final answer
   x = 15.01