Finding the Fourth Proportional to 83.43, 124.27 and 82.98

Step by Step Solution

1. Step 1: Write the proportion equation
   83.43 : 124.27 = 82.98 : x
2. Step 2: Convert to fraction form
   83.43/124.27 = 82.98/x
3. Step 3: Cross multiply
   83.43x = 124.27 × 82.98
4. Step 4: Simplify right side
   83.43x = 10,312.03
5. Step 5: Solve for x
   x = 10,312.03/83.43
6. Step 6: Final answer
   x = 123.60