Finding the Fourth Proportional to 16,940.99, 23,380.29 and 9,771.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,940.99 : 23,380.29 = 9,771.18 : x
2. Step 2: Convert to fraction form
   16,940.99/23,380.29 = 9,771.18/x
3. Step 3: Cross multiply
   16,940.99x = 23,380.29 × 9,771.18
4. Step 4: Simplify right side
   16,940.99x = 228,453,022.04
5. Step 5: Solve for x
   x = 228,453,022.04/16,940.99
6. Step 6: Final answer
   x = 13,485.22