Finding the Fourth Proportional to 89.41, 134.16 and 41.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89.41 : 134.16 = 41.31 : x
2. Step 2: Convert to fraction form
   89.41/134.16 = 41.31/x
3. Step 3: Cross multiply
   89.41x = 134.16 × 41.31
4. Step 4: Simplify right side
   89.41x = 5,542.15
5. Step 5: Solve for x
   x = 5,542.15/89.41
6. Step 6: Final answer
   x = 61.99