Finding the Fourth Proportional to 105.94, 146.17 and 69.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105.94 : 146.17 = 69.09 : x
2. Step 2: Convert to fraction form
   105.94/146.17 = 69.09/x
3. Step 3: Cross multiply
   105.94x = 146.17 × 69.09
4. Step 4: Simplify right side
   105.94x = 10,099.25
5. Step 5: Solve for x
   x = 10,099.25/105.94
6. Step 6: Final answer
   x = 95.33