Finding the Fourth Proportional to 72.47, 108.73 and 69.23

Step by Step Solution

1. Step 1: Write the proportion equation
   72.47 : 108.73 = 69.23 : x
2. Step 2: Convert to fraction form
   72.47/108.73 = 69.23/x
3. Step 3: Cross multiply
   72.47x = 108.73 × 69.23
4. Step 4: Simplify right side
   72.47x = 7,527.38
5. Step 5: Solve for x
   x = 7,527.38/72.47
6. Step 6: Final answer
   x = 103.87