Finding the Fourth Proportional to 196.06, 294.18 and 74.31

Step by Step Solution

1. Step 1: Write the proportion equation
   196.06 : 294.18 = 74.31 : x
2. Step 2: Convert to fraction form
   196.06/294.18 = 74.31/x
3. Step 3: Cross multiply
   196.06x = 294.18 × 74.31
4. Step 4: Simplify right side
   196.06x = 21,860.52
5. Step 5: Solve for x
   x = 21,860.52/196.06
6. Step 6: Final answer
   x = 111.50