Finding the Fourth Proportional to 131.48, 196.82 and 83.24

Step by Step Solution

1. Step 1: Write the proportion equation
   131.48 : 196.82 = 83.24 : x
2. Step 2: Convert to fraction form
   131.48/196.82 = 83.24/x
3. Step 3: Cross multiply
   131.48x = 196.82 × 83.24
4. Step 4: Simplify right side
   131.48x = 16,383.30
5. Step 5: Solve for x
   x = 16,383.30/131.48
6. Step 6: Final answer
   x = 124.61