Finding the Fourth Proportional to 8,073.85, 12,116.37 and 3,143.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.85 : 12,116.37 = 3,143.53 : x
2. Step 2: Convert to fraction form
   8,073.85/12,116.37 = 3,143.53/x
3. Step 3: Cross multiply
   8,073.85x = 12,116.37 × 3,143.53
4. Step 4: Simplify right side
   8,073.85x = 38,088,172.59
5. Step 5: Solve for x
   x = 38,088,172.59/8,073.85
6. Step 6: Final answer
   x = 4,717.47