Finding the Fourth Proportional to 82.39, 123.59 and 46.35

Step by Step Solution

1. Step 1: Write the proportion equation
   82.39 : 123.59 = 46.35 : x
2. Step 2: Convert to fraction form
   82.39/123.59 = 46.35/x
3. Step 3: Cross multiply
   82.39x = 123.59 × 46.35
4. Step 4: Simplify right side
   82.39x = 5,728.40
5. Step 5: Solve for x
   x = 5,728.40/82.39
6. Step 6: Final answer
   x = 69.53