Finding the Fourth Proportional to 82.69, 124.03 and 21.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82.69 : 124.03 = 21.82 : x
2. Step 2: Convert to fraction form
   82.69/124.03 = 21.82/x
3. Step 3: Cross multiply
   82.69x = 124.03 × 21.82
4. Step 4: Simplify right side
   82.69x = 2,706.39
5. Step 5: Solve for x
   x = 2,706.39/82.69
6. Step 6: Final answer
   x = 32.73