Finding the Fourth Proportional to 89.54, 134.31 and 38.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89.54 : 134.31 = 38.18 : x
2. Step 2: Convert to fraction form
   89.54/134.31 = 38.18/x
3. Step 3: Cross multiply
   89.54x = 134.31 × 38.18
4. Step 4: Simplify right side
   89.54x = 5,127.43
5. Step 5: Solve for x
   x = 5,127.43/89.54
6. Step 6: Final answer
   x = 57.26