Finding the Fourth Proportional to 82.25, 123.37 and 47.99

Step by Step Solution

1. Step 1: Write the proportion equation
   82.25 : 123.37 = 47.99 : x
2. Step 2: Convert to fraction form
   82.25/123.37 = 47.99/x
3. Step 3: Cross multiply
   82.25x = 123.37 × 47.99
4. Step 4: Simplify right side
   82.25x = 5,920.25
5. Step 5: Solve for x
   x = 5,920.25/82.25
6. Step 6: Final answer
   x = 71.98