Finding the Fourth Proportional to 196.94, 271.60 and 137.94

Step by Step Solution

1. Step 1: Write the proportion equation
   196.94 : 271.60 = 137.94 : x
2. Step 2: Convert to fraction form
   196.94/271.60 = 137.94/x
3. Step 3: Cross multiply
   196.94x = 271.60 × 137.94
4. Step 4: Simplify right side
   196.94x = 37,464.50
5. Step 5: Solve for x
   x = 37,464.50/196.94
6. Step 6: Final answer
   x = 190.23