Finding the Fourth Proportional to 105.89, 158.58 and 65.26

Step by Step Solution

1. Step 1: Write the proportion equation
   105.89 : 158.58 = 65.26 : x
2. Step 2: Convert to fraction form
   105.89/158.58 = 65.26/x
3. Step 3: Cross multiply
   105.89x = 158.58 × 65.26
4. Step 4: Simplify right side
   105.89x = 10,348.53
5. Step 5: Solve for x
   x = 10,348.53/105.89
6. Step 6: Final answer
   x = 97.73