Finding the Fourth Proportional to 131.89, 182.24 and 108.54

Step by Step Solution

1. Step 1: Write the proportion equation
   131.89 : 182.24 = 108.54 : x
2. Step 2: Convert to fraction form
   131.89/182.24 = 108.54/x
3. Step 3: Cross multiply
   131.89x = 182.24 × 108.54
4. Step 4: Simplify right side
   131.89x = 19,780.33
5. Step 5: Solve for x
   x = 19,780.33/131.89
6. Step 6: Final answer
   x = 149.98