Finding the Fourth Proportional to 105.98, 146.25 and 69.23

Step by Step Solution

1. Step 1: Write the proportion equation
   105.98 : 146.25 = 69.23 : x
2. Step 2: Convert to fraction form
   105.98/146.25 = 69.23/x
3. Step 3: Cross multiply
   105.98x = 146.25 × 69.23
4. Step 4: Simplify right side
   105.98x = 10,124.16
5. Step 5: Solve for x
   x = 10,124.16/105.98
6. Step 6: Final answer
   x = 95.53