Finding the Fourth Proportional to 11.16, 15.42 and 10.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11.16 : 15.42 = 10.01 : x
2. Step 2: Convert to fraction form
   11.16/15.42 = 10.01/x
3. Step 3: Cross multiply
   11.16x = 15.42 × 10.01
4. Step 4: Simplify right side
   11.16x = 154.37
5. Step 5: Solve for x
   x = 154.37/11.16
6. Step 6: Final answer
   x = 13.83