Finding the Fourth Proportional to 105.93, 146.22 and 69.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105.93 : 146.22 = 69.12 : x
2. Step 2: Convert to fraction form
   105.93/146.22 = 69.12/x
3. Step 3: Cross multiply
   105.93x = 146.22 × 69.12
4. Step 4: Simplify right side
   105.93x = 10,106.73
5. Step 5: Solve for x
   x = 10,106.73/105.93
6. Step 6: Final answer
   x = 95.41