Finding the Fourth Proportional to 72.59, 108.18 and 67.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72.59 : 108.18 = 67.25 : x
2. Step 2: Convert to fraction form
   72.59/108.18 = 67.25/x
3. Step 3: Cross multiply
   72.59x = 108.18 × 67.25
4. Step 4: Simplify right side
   72.59x = 7,275.38
5. Step 5: Solve for x
   x = 7,275.38/72.59
6. Step 6: Final answer
   x = 100.23