Finding the Fourth Proportional to 69.82, 104.73 and 54.55

Step by Step Solution

1. Step 1: Write the proportion equation
   69.82 : 104.73 = 54.55 : x
2. Step 2: Convert to fraction form
   69.82/104.73 = 54.55/x
3. Step 3: Cross multiply
   69.82x = 104.73 × 54.55
4. Step 4: Simplify right side
   69.82x = 5,713.02
5. Step 5: Solve for x
   x = 5,713.02/69.82
6. Step 6: Final answer
   x = 81.83