Finding the Fourth Proportional to 131.43, 196.84 and 88.10

Step by Step Solution

1. Step 1: Write the proportion equation
   131.43 : 196.84 = 88.10 : x
2. Step 2: Convert to fraction form
   131.43/196.84 = 88.10/x
3. Step 3: Cross multiply
   131.43x = 196.84 × 88.10
4. Step 4: Simplify right side
   131.43x = 17,341.60
5. Step 5: Solve for x
   x = 17,341.60/131.43
6. Step 6: Final answer
   x = 131.95