Finding the Fourth Proportional to 196.41, 294.52 and 128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   196.41 : 294.52 = 128.04 : x
2. Step 2: Convert to fraction form
   196.41/294.52 = 128.04/x
3. Step 3: Cross multiply
   196.41x = 294.52 × 128.04
4. Step 4: Simplify right side
   196.41x = 37,710.34
5. Step 5: Solve for x
   x = 37,710.34/196.41
6. Step 6: Final answer
   x = 192.00