Finding the Fourth Proportional to 12,328.62, 18,493.86 and 3,563.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,328.62 : 18,493.86 = 3,563.60 : x
2. Step 2: Convert to fraction form
   12,328.62/18,493.86 = 3,563.60/x
3. Step 3: Cross multiply
   12,328.62x = 18,493.86 × 3,563.60
4. Step 4: Simplify right side
   12,328.62x = 65,904,719.50
5. Step 5: Solve for x
   x = 65,904,719.50/12,328.62
6. Step 6: Final answer
   x = 5,345.67