Finding the Fourth Proportional to 93.68, 139.56 and 89.33

Step by Step Solution

1. Step 1: Write the proportion equation
   93.68 : 139.56 = 89.33 : x
2. Step 2: Convert to fraction form
   93.68/139.56 = 89.33/x
3. Step 3: Cross multiply
   93.68x = 139.56 × 89.33
4. Step 4: Simplify right side
   93.68x = 12,466.89
5. Step 5: Solve for x
   x = 12,466.89/93.68
6. Step 6: Final answer
   x = 133.08