Finding the Fourth Proportional to 83.52, 124.59 and 82.29

Step by Step Solution

1. Step 1: Write the proportion equation
   83.52 : 124.59 = 82.29 : x
2. Step 2: Convert to fraction form
   83.52/124.59 = 82.29/x
3. Step 3: Cross multiply
   83.52x = 124.59 × 82.29
4. Step 4: Simplify right side
   83.52x = 10,252.51
5. Step 5: Solve for x
   x = 10,252.51/83.52
6. Step 6: Final answer
   x = 122.76