Finding the Fourth Proportional to 89.59, 134.32 and 38.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89.59 : 134.32 = 38.18 : x
2. Step 2: Convert to fraction form
   89.59/134.32 = 38.18/x
3. Step 3: Cross multiply
   89.59x = 134.32 × 38.18
4. Step 4: Simplify right side
   89.59x = 5,128.34
5. Step 5: Solve for x
   x = 5,128.34/89.59
6. Step 6: Final answer
   x = 57.24