Finding the Fourth Proportional to 83.15, 114.72 and 62.49

Step by Step Solution

1. Step 1: Write the proportion equation
   83.15 : 114.72 = 62.49 : x
2. Step 2: Convert to fraction form
   83.15/114.72 = 62.49/x
3. Step 3: Cross multiply
   83.15x = 114.72 × 62.49
4. Step 4: Simplify right side
   83.15x = 7,168.85
5. Step 5: Solve for x
   x = 7,168.85/83.15
6. Step 6: Final answer
   x = 86.22