Finding the Fourth Proportional to 82.29, 123.92 and 67.98

Step by Step Solution

1. Step 1: Write the proportion equation
   82.29 : 123.92 = 67.98 : x
2. Step 2: Convert to fraction form
   82.29/123.92 = 67.98/x
3. Step 3: Cross multiply
   82.29x = 123.92 × 67.98
4. Step 4: Simplify right side
   82.29x = 8,423.74
5. Step 5: Solve for x
   x = 8,423.74/82.29
6. Step 6: Final answer
   x = 102.37