Finding the Fourth Proportional to 12,447.84, 18,674.72 and 3,563.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,447.84 : 18,674.72 = 3,563.30 : x
2. Step 2: Convert to fraction form
   12,447.84/18,674.72 = 3,563.30/x
3. Step 3: Cross multiply
   12,447.84x = 18,674.72 × 3,563.30
4. Step 4: Simplify right side
   12,447.84x = 66,543,629.78
5. Step 5: Solve for x
   x = 66,543,629.78/12,447.84
6. Step 6: Final answer
   x = 5,345.80