Finding the Fourth Proportional to 89.50, 134.19 and 40.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89.50 : 134.19 = 40.73 : x
2. Step 2: Convert to fraction form
   89.50/134.19 = 40.73/x
3. Step 3: Cross multiply
   89.50x = 134.19 × 40.73
4. Step 4: Simplify right side
   89.50x = 5,464.89
5. Step 5: Solve for x
   x = 5,464.89/89.50
6. Step 6: Final answer
   x = 61.06