Finding the Fourth Proportional to 17,814.48, 24,581.76 and 9,855.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,814.48 : 24,581.76 = 9,855.60 : x
2. Step 2: Convert to fraction form
   17,814.48/24,581.76 = 9,855.60/x
3. Step 3: Cross multiply
   17,814.48x = 24,581.76 × 9,855.60
4. Step 4: Simplify right side
   17,814.48x = 242,267,993.86
5. Step 5: Solve for x
   x = 242,267,993.86/17,814.48
6. Step 6: Final answer
   x = 13,599.50