Finding the Fourth Proportional to 16,296.99, 22,490.20 and 9,923.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,296.99 : 22,490.20 = 9,923.86 : x
2. Step 2: Convert to fraction form
   16,296.99/22,490.20 = 9,923.86/x
3. Step 3: Cross multiply
   16,296.99x = 22,490.20 × 9,923.86
4. Step 4: Simplify right side
   16,296.99x = 223,189,434.10
5. Step 5: Solve for x
   x = 223,189,434.10/16,296.99
6. Step 6: Final answer
   x = 13,695.13