Finding the Fourth Proportional to 196.67, 271.55 and 131.33

Step by Step Solution

1. Step 1: Write the proportion equation
   196.67 : 271.55 = 131.33 : x
2. Step 2: Convert to fraction form
   196.67/271.55 = 131.33/x
3. Step 3: Cross multiply
   196.67x = 271.55 × 131.33
4. Step 4: Simplify right side
   196.67x = 35,662.66
5. Step 5: Solve for x
   x = 35,662.66/196.67
6. Step 6: Final answer
   x = 181.33