Finding the Fourth Proportional to 82.96, 124.42 and 28.84

Step by Step Solution

1. Step 1: Write the proportion equation
   82.96 : 124.42 = 28.84 : x
2. Step 2: Convert to fraction form
   82.96/124.42 = 28.84/x
3. Step 3: Cross multiply
   82.96x = 124.42 × 28.84
4. Step 4: Simplify right side
   82.96x = 3,588.27
5. Step 5: Solve for x
   x = 3,588.27/82.96
6. Step 6: Final answer
   x = 43.25