Finding the Fourth Proportional to 93.37, 139.74 and 89.59

Step by Step Solution

1. Step 1: Write the proportion equation
   93.37 : 139.74 = 89.59 : x
2. Step 2: Convert to fraction form
   93.37/139.74 = 89.59/x
3. Step 3: Cross multiply
   93.37x = 139.74 × 89.59
4. Step 4: Simplify right side
   93.37x = 12,519.31
5. Step 5: Solve for x
   x = 12,519.31/93.37
6. Step 6: Final answer
   x = 134.08