Finding the Fourth Proportional to 12,410.10, 18,615 and 3,644.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,410.10 : 18,615 = 3,644.70 : x
2. Step 2: Convert to fraction form
   12,410.10/18,615 = 3,644.70/x
3. Step 3: Cross multiply
   12,410.10x = 18,615 × 3,644.70
4. Step 4: Simplify right side
   12,410.10x = 67,846,090.50
5. Step 5: Solve for x
   x = 67,846,090.50/12,410.10
6. Step 6: Final answer
   x = 5,467.01