Finding the Fourth Proportional to 89.69, 134.27 and 53.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89.69 : 134.27 = 53.69 : x
2. Step 2: Convert to fraction form
   89.69/134.27 = 53.69/x
3. Step 3: Cross multiply
   89.69x = 134.27 × 53.69
4. Step 4: Simplify right side
   89.69x = 7,208.69
5. Step 5: Solve for x
   x = 7,208.69/89.69
6. Step 6: Final answer
   x = 80.37