Finding the Fourth Proportional to 82.49, 123.61 and 62.18

Step by Step Solution

1. Step 1: Write the proportion equation
   82.49 : 123.61 = 62.18 : x
2. Step 2: Convert to fraction form
   82.49/123.61 = 62.18/x
3. Step 3: Cross multiply
   82.49x = 123.61 × 62.18
4. Step 4: Simplify right side
   82.49x = 7,686.07
5. Step 5: Solve for x
   x = 7,686.07/82.49
6. Step 6: Final answer
   x = 93.18