Finding the Fourth Proportional to 11.59, 15.98 and 7.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11.59 : 15.98 = 7.94 : x
2. Step 2: Convert to fraction form
   11.59/15.98 = 7.94/x
3. Step 3: Cross multiply
   11.59x = 15.98 × 7.94
4. Step 4: Simplify right side
   11.59x = 126.88
5. Step 5: Solve for x
   x = 126.88/11.59
6. Step 6: Final answer
   x = 10.95