Finding the Fourth Proportional to 12,116.70, 18,172.89 and 3,349.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116.70 : 18,172.89 = 3,349.62 : x
2. Step 2: Convert to fraction form
   12,116.70/18,172.89 = 3,349.62/x
3. Step 3: Cross multiply
   12,116.70x = 18,172.89 × 3,349.62
4. Step 4: Simplify right side
   12,116.70x = 60,872,275.80
5. Step 5: Solve for x
   x = 60,872,275.80/12,116.70
6. Step 6: Final answer
   x = 5,023.83