Finding the Fourth Proportional to 82.37, 123.41 and 48.15

Step by Step Solution

1. Step 1: Write the proportion equation
   82.37 : 123.41 = 48.15 : x
2. Step 2: Convert to fraction form
   82.37/123.41 = 48.15/x
3. Step 3: Cross multiply
   82.37x = 123.41 × 48.15
4. Step 4: Simplify right side
   82.37x = 5,941.95
5. Step 5: Solve for x
   x = 5,941.95/82.37
6. Step 6: Final answer
   x = 72.14