Finding the Fourth Proportional to 131.27, 196.37 and 88.43

Step by Step Solution

1. Step 1: Write the proportion equation
   131.27 : 196.37 = 88.43 : x
2. Step 2: Convert to fraction form
   131.27/196.37 = 88.43/x
3. Step 3: Cross multiply
   131.27x = 196.37 × 88.43
4. Step 4: Simplify right side
   131.27x = 17,364.56
5. Step 5: Solve for x
   x = 17,364.56/131.27
6. Step 6: Final answer
   x = 132.28