Finding the Fourth Proportional to 131.25, 196.35 and 111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   131.25 : 196.35 = 111.48 : x
2. Step 2: Convert to fraction form
   131.25/196.35 = 111.48/x
3. Step 3: Cross multiply
   131.25x = 196.35 × 111.48
4. Step 4: Simplify right side
   131.25x = 21,889.10
5. Step 5: Solve for x
   x = 21,889.10/131.25
6. Step 6: Final answer
   x = 166.77