Finding the Fourth Proportional to 131.94, 196.88 and 118.28

Step by Step Solution

1. Step 1: Write the proportion equation
   131.94 : 196.88 = 118.28 : x
2. Step 2: Convert to fraction form
   131.94/196.88 = 118.28/x
3. Step 3: Cross multiply
   131.94x = 196.88 × 118.28
4. Step 4: Simplify right side
   131.94x = 23,285.98
5. Step 5: Solve for x
   x = 23,285.98/131.94
6. Step 6: Final answer
   x = 176.49