Finding the Fourth Proportional to 196.16, 270.52 and 126.10

Step by Step Solution

1. Step 1: Write the proportion equation
   196.16 : 270.52 = 126.10 : x
2. Step 2: Convert to fraction form
   196.16/270.52 = 126.10/x
3. Step 3: Cross multiply
   196.16x = 270.52 × 126.10
4. Step 4: Simplify right side
   196.16x = 34,111.90
5. Step 5: Solve for x
   x = 34,111.90/196.16
6. Step 6: Final answer
   x = 173.90