Finding the Fourth Proportional to 144.72, 199.71 and 95.61

Step by Step Solution

1. Step 1: Write the proportion equation
   144.72 : 199.71 = 95.61 : x
2. Step 2: Convert to fraction form
   144.72/199.71 = 95.61/x
3. Step 3: Cross multiply
   144.72x = 199.71 × 95.61
4. Step 4: Simplify right side
   144.72x = 19,095.01
5. Step 5: Solve for x
   x = 19,095.01/144.72
6. Step 6: Final answer
   x = 131.94