Finding the Fourth Proportional to 131.10, 196.31 and 92.37

Step by Step Solution

1. Step 1: Write the proportion equation
   131.10 : 196.31 = 92.37 : x
2. Step 2: Convert to fraction form
   131.10/196.31 = 92.37/x
3. Step 3: Cross multiply
   131.10x = 196.31 × 92.37
4. Step 4: Simplify right side
   131.10x = 18,133.78
5. Step 5: Solve for x
   x = 18,133.78/131.10
6. Step 6: Final answer
   x = 138.32