Finding the Fourth Proportional to 131.82, 196.50 and 130.38

Step by Step Solution

1. Step 1: Write the proportion equation
   131.82 : 196.50 = 130.38 : x
2. Step 2: Convert to fraction form
   131.82/196.50 = 130.38/x
3. Step 3: Cross multiply
   131.82x = 196.50 × 130.38
4. Step 4: Simplify right side
   131.82x = 25,619.67
5. Step 5: Solve for x
   x = 25,619.67/131.82
6. Step 6: Final answer
   x = 194.35