Finding the Fourth Proportional to 11.34, 17.01 and 5.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11.34 : 17.01 = 5.31 : x
2. Step 2: Convert to fraction form
   11.34/17.01 = 5.31/x
3. Step 3: Cross multiply
   11.34x = 17.01 × 5.31
4. Step 4: Simplify right side
   11.34x = 90.32
5. Step 5: Solve for x
   x = 90.32/11.34
6. Step 6: Final answer
   x = 7.97