Finding the Fourth Proportional to 83.98, 115.83 and 67.54

Step by Step Solution

1. Step 1: Write the proportion equation
   83.98 : 115.83 = 67.54 : x
2. Step 2: Convert to fraction form
   83.98/115.83 = 67.54/x
3. Step 3: Cross multiply
   83.98x = 115.83 × 67.54
4. Step 4: Simplify right side
   83.98x = 7,823.16
5. Step 5: Solve for x
   x = 7,823.16/83.98
6. Step 6: Final answer
   x = 93.16