Finding the Fourth Proportional to 12,581.83, 18,873.15 and 3,816.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.83 : 18,873.15 = 3,816.82 : x
2. Step 2: Convert to fraction form
   12,581.83/18,873.15 = 3,816.82/x
3. Step 3: Cross multiply
   12,581.83x = 18,873.15 × 3,816.82
4. Step 4: Simplify right side
   12,581.83x = 72,035,302.93
5. Step 5: Solve for x
   x = 72,035,302.93/12,581.83
6. Step 6: Final answer
   x = 5,725.35