Finding the Fourth Proportional to 131.47, 196.18 and 130.71

Step by Step Solution

1. Step 1: Write the proportion equation
   131.47 : 196.18 = 130.71 : x
2. Step 2: Convert to fraction form
   131.47/196.18 = 130.71/x
3. Step 3: Cross multiply
   131.47x = 196.18 × 130.71
4. Step 4: Simplify right side
   131.47x = 25,642.69
5. Step 5: Solve for x
   x = 25,642.69/131.47
6. Step 6: Final answer
   x = 195.05