Finding the Fourth Proportional to 11.91, 16.42 and 10.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11.91 : 16.42 = 10.37 : x
2. Step 2: Convert to fraction form
   11.91/16.42 = 10.37/x
3. Step 3: Cross multiply
   11.91x = 16.42 × 10.37
4. Step 4: Simplify right side
   11.91x = 170.37
5. Step 5: Solve for x
   x = 170.37/11.91
6. Step 6: Final answer
   x = 14.30