Finding the Fourth Proportional to 82.62, 123.76 and 67.25

Step by Step Solution

1. Step 1: Write the proportion equation
   82.62 : 123.76 = 67.25 : x
2. Step 2: Convert to fraction form
   82.62/123.76 = 67.25/x
3. Step 3: Cross multiply
   82.62x = 123.76 × 67.25
4. Step 4: Simplify right side
   82.62x = 8,322.86
5. Step 5: Solve for x
   x = 8,322.86/82.62
6. Step 6: Final answer
   x = 100.74