Finding the Fourth Proportional to 82.32, 123.22 and 47.98

Step by Step Solution

1. Step 1: Write the proportion equation
   82.32 : 123.22 = 47.98 : x
2. Step 2: Convert to fraction form
   82.32/123.22 = 47.98/x
3. Step 3: Cross multiply
   82.32x = 123.22 × 47.98
4. Step 4: Simplify right side
   82.32x = 5,912.10
5. Step 5: Solve for x
   x = 5,912.10/82.32
6. Step 6: Final answer
   x = 71.82