Finding the Fourth Proportional to 82.62, 123.90 and 46.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82.62 : 123.90 = 46.50 : x
2. Step 2: Convert to fraction form
   82.62/123.90 = 46.50/x
3. Step 3: Cross multiply
   82.62x = 123.90 × 46.50
4. Step 4: Simplify right side
   82.62x = 5,761.35
5. Step 5: Solve for x
   x = 5,761.35/82.62
6. Step 6: Final answer
   x = 69.73