Finding the Fourth Proportional to 82.42, 123.53 and 48.14

Step by Step Solution

1. Step 1: Write the proportion equation
   82.42 : 123.53 = 48.14 : x
2. Step 2: Convert to fraction form
   82.42/123.53 = 48.14/x
3. Step 3: Cross multiply
   82.42x = 123.53 × 48.14
4. Step 4: Simplify right side
   82.42x = 5,947.03
5. Step 5: Solve for x
   x = 5,947.03/82.42
6. Step 6: Final answer
   x = 72.16