Finding the Fourth Proportional to 196.82, 271.57 and 131.51

Step by Step Solution

1. Step 1: Write the proportion equation
   196.82 : 271.57 = 131.51 : x
2. Step 2: Convert to fraction form
   196.82/271.57 = 131.51/x
3. Step 3: Cross multiply
   196.82x = 271.57 × 131.51
4. Step 4: Simplify right side
   196.82x = 35,714.17
5. Step 5: Solve for x
   x = 35,714.17/196.82
6. Step 6: Final answer
   x = 181.46