Finding the Fourth Proportional to 82.83, 124.29 and 48.15

Step by Step Solution

1. Step 1: Write the proportion equation
   82.83 : 124.29 = 48.15 : x
2. Step 2: Convert to fraction form
   82.83/124.29 = 48.15/x
3. Step 3: Cross multiply
   82.83x = 124.29 × 48.15
4. Step 4: Simplify right side
   82.83x = 5,984.56
5. Step 5: Solve for x
   x = 5,984.56/82.83
6. Step 6: Final answer
   x = 72.25