Finding the Fourth Proportional to 82.71, 123.98 and 27.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82.71 : 123.98 = 27.83 : x
2. Step 2: Convert to fraction form
   82.71/123.98 = 27.83/x
3. Step 3: Cross multiply
   82.71x = 123.98 × 27.83
4. Step 4: Simplify right side
   82.71x = 3,450.12
5. Step 5: Solve for x
   x = 3,450.12/82.71
6. Step 6: Final answer
   x = 41.71