Finding the Fourth Proportional to 89.82, 134.51 and 75.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89.82 : 134.51 = 75.34 : x
2. Step 2: Convert to fraction form
   89.82/134.51 = 75.34/x
3. Step 3: Cross multiply
   89.82x = 134.51 × 75.34
4. Step 4: Simplify right side
   89.82x = 10,133.27
5. Step 5: Solve for x
   x = 10,133.27/89.82
6. Step 6: Final answer
   x = 112.82