Finding the Fourth Proportional to 12,885.18, 19,327.59 and 3,651.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,885.18 : 19,327.59 = 3,651.18 : x
2. Step 2: Convert to fraction form
   12,885.18/19,327.59 = 3,651.18/x
3. Step 3: Cross multiply
   12,885.18x = 19,327.59 × 3,651.18
4. Step 4: Simplify right side
   12,885.18x = 70,568,510.06
5. Step 5: Solve for x
   x = 70,568,510.06/12,885.18
6. Step 6: Final answer
   x = 5,476.72