Finding the Fourth Proportional to 12,581.57, 18,874.37 and 3,814.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.57 : 18,874.37 = 3,814.43 : x
2. Step 2: Convert to fraction form
   12,581.57/18,874.37 = 3,814.43/x
3. Step 3: Cross multiply
   12,581.57x = 18,874.37 × 3,814.43
4. Step 4: Simplify right side
   12,581.57x = 71,994,878.32
5. Step 5: Solve for x
   x = 71,994,878.32/12,581.57
6. Step 6: Final answer
   x = 5,722.25