Finding the Fourth Proportional to 89.33, 133.94 and 52.84

Step by Step Solution

1. Step 1: Write the proportion equation
   89.33 : 133.94 = 52.84 : x
2. Step 2: Convert to fraction form
   89.33/133.94 = 52.84/x
3. Step 3: Cross multiply
   89.33x = 133.94 × 52.84
4. Step 4: Simplify right side
   89.33x = 7,076.72
5. Step 5: Solve for x
   x = 7,076.72/89.33
6. Step 6: Final answer
   x = 79.22