Finding the Fourth Proportional to 69.01, 103.56 and 53.83

Step by Step Solution

1. Step 1: Write the proportion equation
   69.01 : 103.56 = 53.83 : x
2. Step 2: Convert to fraction form
   69.01/103.56 = 53.83/x
3. Step 3: Cross multiply
   69.01x = 103.56 × 53.83
4. Step 4: Simplify right side
   69.01x = 5,574.25
5. Step 5: Solve for x
   x = 5,574.25/69.01
6. Step 6: Final answer
   x = 80.77