Finding the Fourth Proportional to 82.69, 124.09 and 60.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82.69 : 124.09 = 60.69 : x
2. Step 2: Convert to fraction form
   82.69/124.09 = 60.69/x
3. Step 3: Cross multiply
   82.69x = 124.09 × 60.69
4. Step 4: Simplify right side
   82.69x = 7,531.02
5. Step 5: Solve for x
   x = 7,531.02/82.69
6. Step 6: Final answer
   x = 91.08