Finding the Fourth Proportional to 69.73, 104.72 and 55.33

Step by Step Solution

1. Step 1: Write the proportion equation
   69.73 : 104.72 = 55.33 : x
2. Step 2: Convert to fraction form
   69.73/104.72 = 55.33/x
3. Step 3: Cross multiply
   69.73x = 104.72 × 55.33
4. Step 4: Simplify right side
   69.73x = 5,794.16
5. Step 5: Solve for x
   x = 5,794.16/69.73
6. Step 6: Final answer
   x = 83.09