Finding the Fourth Proportional to 89.45, 134.24 and 43.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89.45 : 134.24 = 43.82 : x
2. Step 2: Convert to fraction form
   89.45/134.24 = 43.82/x
3. Step 3: Cross multiply
   89.45x = 134.24 × 43.82
4. Step 4: Simplify right side
   89.45x = 5,882.06
5. Step 5: Solve for x
   x = 5,882.06/89.45
6. Step 6: Final answer
   x = 65.75