Finding the Fourth Proportional to 89.56, 134.27 and 52.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89.56 : 134.27 = 52.91 : x
2. Step 2: Convert to fraction form
   89.56/134.27 = 52.91/x
3. Step 3: Cross multiply
   89.56x = 134.27 × 52.91
4. Step 4: Simplify right side
   89.56x = 7,103.29
5. Step 5: Solve for x
   x = 7,103.29/89.56
6. Step 6: Final answer
   x = 79.32