Finding the Fourth Proportional to 89.24, 133.82 and 43.61

Step by Step Solution

1. Step 1: Write the proportion equation
   89.24 : 133.82 = 43.61 : x
2. Step 2: Convert to fraction form
   89.24/133.82 = 43.61/x
3. Step 3: Cross multiply
   89.24x = 133.82 × 43.61
4. Step 4: Simplify right side
   89.24x = 5,835.17
5. Step 5: Solve for x
   x = 5,835.17/89.24
6. Step 6: Final answer
   x = 65.39