Finding the Fourth Proportional to 72.15, 107.37 and 69.27

Step by Step Solution

1. Step 1: Write the proportion equation
   72.15 : 107.37 = 69.27 : x
2. Step 2: Convert to fraction form
   72.15/107.37 = 69.27/x
3. Step 3: Cross multiply
   72.15x = 107.37 × 69.27
4. Step 4: Simplify right side
   72.15x = 7,437.52
5. Step 5: Solve for x
   x = 7,437.52/72.15
6. Step 6: Final answer
   x = 103.08