Finding the Fourth Proportional to 89.29, 134.34 and 53.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89.29 : 134.34 = 53.25 : x
2. Step 2: Convert to fraction form
   89.29/134.34 = 53.25/x
3. Step 3: Cross multiply
   89.29x = 134.34 × 53.25
4. Step 4: Simplify right side
   89.29x = 7,153.61
5. Step 5: Solve for x
   x = 7,153.61/89.29
6. Step 6: Final answer
   x = 80.12