Finding the Fourth Proportional to 89.82, 134.71 and 28.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89.82 : 134.71 = 28.96 : x
2. Step 2: Convert to fraction form
   89.82/134.71 = 28.96/x
3. Step 3: Cross multiply
   89.82x = 134.71 × 28.96
4. Step 4: Simplify right side
   89.82x = 3,900.79
5. Step 5: Solve for x
   x = 3,900.79/89.82
6. Step 6: Final answer
   x = 43.43