Finding the Fourth Proportional to 89.33, 134.06 and 40.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89.33 : 134.06 = 40.58 : x
2. Step 2: Convert to fraction form
   89.33/134.06 = 40.58/x
3. Step 3: Cross multiply
   89.33x = 134.06 × 40.58
4. Step 4: Simplify right side
   89.33x = 5,440.59
5. Step 5: Solve for x
   x = 5,440.59/89.33
6. Step 6: Final answer
   x = 60.90