Finding the Fourth Proportional to 83.16, 114.72 and 67.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83.16 : 114.72 = 67.56 : x
2. Step 2: Convert to fraction form
   83.16/114.72 = 67.56/x
3. Step 3: Cross multiply
   83.16x = 114.72 × 67.56
4. Step 4: Simplify right side
   83.16x = 7,750.48
5. Step 5: Solve for x
   x = 7,750.48/83.16
6. Step 6: Final answer
   x = 93.20