Finding the Fourth Proportional to 131.08, 196.50 and 111.22

Step by Step Solution

1. Step 1: Write the proportion equation
   131.08 : 196.50 = 111.22 : x
2. Step 2: Convert to fraction form
   131.08/196.50 = 111.22/x
3. Step 3: Cross multiply
   131.08x = 196.50 × 111.22
4. Step 4: Simplify right side
   131.08x = 21,854.73
5. Step 5: Solve for x
   x = 21,854.73/131.08
6. Step 6: Final answer
   x = 166.73