Finding the Fourth Proportional to 82.69, 123.93 and 72.52

Step by Step Solution

1. Step 1: Write the proportion equation
   82.69 : 123.93 = 72.52 : x
2. Step 2: Convert to fraction form
   82.69/123.93 = 72.52/x
3. Step 3: Cross multiply
   82.69x = 123.93 × 72.52
4. Step 4: Simplify right side
   82.69x = 8,987.40
5. Step 5: Solve for x
   x = 8,987.40/82.69
6. Step 6: Final answer
   x = 108.69