Finding the Fourth Proportional to 105.96, 146.24 and 69.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105.96 : 146.24 = 69.22 : x
2. Step 2: Convert to fraction form
   105.96/146.24 = 69.22/x
3. Step 3: Cross multiply
   105.96x = 146.24 × 69.22
4. Step 4: Simplify right side
   105.96x = 10,122.39
5. Step 5: Solve for x
   x = 10,122.39/105.96
6. Step 6: Final answer
   x = 95.53