Finding the Fourth Proportional to 12,647.89, 18,975.48 and 3,884.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,647.89 : 18,975.48 = 3,884.10 : x
2. Step 2: Convert to fraction form
   12,647.89/18,975.48 = 3,884.10/x
3. Step 3: Cross multiply
   12,647.89x = 18,975.48 × 3,884.10
4. Step 4: Simplify right side
   12,647.89x = 73,702,661.87
5. Step 5: Solve for x
   x = 73,702,661.87/12,647.89
6. Step 6: Final answer
   x = 5,827.27