Finding the Fourth Proportional to 89.37, 134.17 and 58.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89.37 : 134.17 = 58.57 : x
2. Step 2: Convert to fraction form
   89.37/134.17 = 58.57/x
3. Step 3: Cross multiply
   89.37x = 134.17 × 58.57
4. Step 4: Simplify right side
   89.37x = 7,858.34
5. Step 5: Solve for x
   x = 7,858.34/89.37
6. Step 6: Final answer
   x = 87.93