Finding the Fourth Proportional to 105.37, 158.06 and 65.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105.37 : 158.06 = 65.05 : x
2. Step 2: Convert to fraction form
   105.37/158.06 = 65.05/x
3. Step 3: Cross multiply
   105.37x = 158.06 × 65.05
4. Step 4: Simplify right side
   105.37x = 10,281.80
5. Step 5: Solve for x
   x = 10,281.80/105.37
6. Step 6: Final answer
   x = 97.58