Finding the Fourth Proportional to 83.83, 126.43 and 82.92

Step by Step Solution

1. Step 1: Write the proportion equation
   83.83 : 126.43 = 82.92 : x
2. Step 2: Convert to fraction form
   83.83/126.43 = 82.92/x
3. Step 3: Cross multiply
   83.83x = 126.43 × 82.92
4. Step 4: Simplify right side
   83.83x = 10,483.58
5. Step 5: Solve for x
   x = 10,483.58/83.83
6. Step 6: Final answer
   x = 125.06