Finding the Fourth Proportional to 82.23, 123.38 and 46.18

Step by Step Solution

1. Step 1: Write the proportion equation
   82.23 : 123.38 = 46.18 : x
2. Step 2: Convert to fraction form
   82.23/123.38 = 46.18/x
3. Step 3: Cross multiply
   82.23x = 123.38 × 46.18
4. Step 4: Simplify right side
   82.23x = 5,697.69
5. Step 5: Solve for x
   x = 5,697.69/82.23
6. Step 6: Final answer
   x = 69.29