Finding the Fourth Proportional to 89.56, 134.07 and 59.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89.56 : 134.07 = 59.05 : x
2. Step 2: Convert to fraction form
   89.56/134.07 = 59.05/x
3. Step 3: Cross multiply
   89.56x = 134.07 × 59.05
4. Step 4: Simplify right side
   89.56x = 7,916.83
5. Step 5: Solve for x
   x = 7,916.83/89.56
6. Step 6: Final answer
   x = 88.40