Finding the Fourth Proportional to 12,410.94, 18,616.61 and 3,646.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,410.94 : 18,616.61 = 3,646.05 : x
2. Step 2: Convert to fraction form
   12,410.94/18,616.61 = 3,646.05/x
3. Step 3: Cross multiply
   12,410.94x = 18,616.61 × 3,646.05
4. Step 4: Simplify right side
   12,410.94x = 67,877,072.66
5. Step 5: Solve for x
   x = 67,877,072.66/12,410.94
6. Step 6: Final answer
   x = 5,469.13