Finding the Fourth Proportional to 105.31, 145.43 and 95.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105.31 : 145.43 = 95.59 : x
2. Step 2: Convert to fraction form
   105.31/145.43 = 95.59/x
3. Step 3: Cross multiply
   105.31x = 145.43 × 95.59
4. Step 4: Simplify right side
   105.31x = 13,901.65
5. Step 5: Solve for x
   x = 13,901.65/105.31
6. Step 6: Final answer
   x = 132.01