Finding the Fourth Proportional to 72.37, 108.71 and 69.19

Step by Step Solution

1. Step 1: Write the proportion equation
   72.37 : 108.71 = 69.19 : x
2. Step 2: Convert to fraction form
   72.37/108.71 = 69.19/x
3. Step 3: Cross multiply
   72.37x = 108.71 × 69.19
4. Step 4: Simplify right side
   72.37x = 7,521.29
5. Step 5: Solve for x
   x = 7,521.29/72.37
6. Step 6: Final answer
   x = 103.93