Finding the Fourth Proportional to 131.82, 196.90 and 118.96

Step by Step Solution

1. Step 1: Write the proportion equation
   131.82 : 196.90 = 118.96 : x
2. Step 2: Convert to fraction form
   131.82/196.90 = 118.96/x
3. Step 3: Cross multiply
   131.82x = 196.90 × 118.96
4. Step 4: Simplify right side
   131.82x = 23,423.22
5. Step 5: Solve for x
   x = 23,423.22/131.82
6. Step 6: Final answer
   x = 177.69