Finding the Fourth Proportional to 105.90, 146.82 and 95.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105.90 : 146.82 = 95.10 : x
2. Step 2: Convert to fraction form
   105.90/146.82 = 95.10/x
3. Step 3: Cross multiply
   105.90x = 146.82 × 95.10
4. Step 4: Simplify right side
   105.90x = 13,962.58
5. Step 5: Solve for x
   x = 13,962.58/105.90
6. Step 6: Final answer
   x = 131.85