Finding the Fourth Proportional to 72.23, 108.89 and 67.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72.23 : 108.89 = 67.53 : x
2. Step 2: Convert to fraction form
   72.23/108.89 = 67.53/x
3. Step 3: Cross multiply
   72.23x = 108.89 × 67.53
4. Step 4: Simplify right side
   72.23x = 7,353.39
5. Step 5: Solve for x
   x = 7,353.39/72.23
6. Step 6: Final answer
   x = 101.80