Finding the Fourth Proportional to 86.03, 118.67 and 59.83

Step by Step Solution

1. Step 1: Write the proportion equation
   86.03 : 118.67 = 59.83 : x
2. Step 2: Convert to fraction form
   86.03/118.67 = 59.83/x
3. Step 3: Cross multiply
   86.03x = 118.67 × 59.83
4. Step 4: Simplify right side
   86.03x = 7,100.03
5. Step 5: Solve for x
   x = 7,100.03/86.03
6. Step 6: Final answer
   x = 82.53