Finding the Fourth Proportional to 89.29, 133.94 and 43.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89.29 : 133.94 = 43.68 : x
2. Step 2: Convert to fraction form
   89.29/133.94 = 43.68/x
3. Step 3: Cross multiply
   89.29x = 133.94 × 43.68
4. Step 4: Simplify right side
   89.29x = 5,850.50
5. Step 5: Solve for x
   x = 5,850.50/89.29
6. Step 6: Final answer
   x = 65.52