Finding the Fourth Proportional to 82.59, 123.11 and 82.32

Step by Step Solution

1. Step 1: Write the proportion equation
   82.59 : 123.11 = 82.32 : x
2. Step 2: Convert to fraction form
   82.59/123.11 = 82.32/x
3. Step 3: Cross multiply
   82.59x = 123.11 × 82.32
4. Step 4: Simplify right side
   82.59x = 10,134.00
5. Step 5: Solve for x
   x = 10,134.00/82.59
6. Step 6: Final answer
   x = 122.70