Finding the Fourth Proportional to 82.34, 123.47 and 65.18

Step by Step Solution

1. Step 1: Write the proportion equation
   82.34 : 123.47 = 65.18 : x
2. Step 2: Convert to fraction form
   82.34/123.47 = 65.18/x
3. Step 3: Cross multiply
   82.34x = 123.47 × 65.18
4. Step 4: Simplify right side
   82.34x = 8,047.77
5. Step 5: Solve for x
   x = 8,047.77/82.34
6. Step 6: Final answer
   x = 97.74