Finding the Fourth Proportional to 86.83, 119.73 and 62.17

Step by Step Solution

1. Step 1: Write the proportion equation
   86.83 : 119.73 = 62.17 : x
2. Step 2: Convert to fraction form
   86.83/119.73 = 62.17/x
3. Step 3: Cross multiply
   86.83x = 119.73 × 62.17
4. Step 4: Simplify right side
   86.83x = 7,443.61
5. Step 5: Solve for x
   x = 7,443.61/86.83
6. Step 6: Final answer
   x = 85.73