Finding the Fourth Proportional to 11.05, 16.59 and 5.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11.05 : 16.59 = 5.98 : x
2. Step 2: Convert to fraction form
   11.05/16.59 = 5.98/x
3. Step 3: Cross multiply
   11.05x = 16.59 × 5.98
4. Step 4: Simplify right side
   11.05x = 99.20
5. Step 5: Solve for x
   x = 99.20/11.05
6. Step 6: Final answer
   x = 8.98