Finding the Fourth Proportional to 12,568.37, 18,855.72 and 8,877.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,568.37 : 18,855.72 = 8,877.83 : x
2. Step 2: Convert to fraction form
   12,568.37/18,855.72 = 8,877.83/x
3. Step 3: Cross multiply
   12,568.37x = 18,855.72 × 8,877.83
4. Step 4: Simplify right side
   12,568.37x = 167,397,782.41
5. Step 5: Solve for x
   x = 167,397,782.41/12,568.37
6. Step 6: Final answer
   x = 13,318.98