Finding the Fourth Proportional to 89.67, 134.49 and 28.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89.67 : 134.49 = 28.82 : x
2. Step 2: Convert to fraction form
   89.67/134.49 = 28.82/x
3. Step 3: Cross multiply
   89.67x = 134.49 × 28.82
4. Step 4: Simplify right side
   89.67x = 3,876.45
5. Step 5: Solve for x
   x = 3,876.45/89.67
6. Step 6: Final answer
   x = 43.23