Finding the Fourth Proportional to 12,581.82, 18,873 and 3,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.82 : 18,873 = 3,816.72 : x
2. Step 2: Convert to fraction form
   12,581.82/18,873 = 3,816.72/x
3. Step 3: Cross multiply
   12,581.82x = 18,873 × 3,816.72
4. Step 4: Simplify right side
   12,581.82x = 72,032,956.56
5. Step 5: Solve for x
   x = 72,032,956.56/12,581.82
6. Step 6: Final answer
   x = 5,725.16