Finding the Fourth Proportional to 16,238.67, 22,393.83 and 9,866.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,238.67 : 22,393.83 = 9,866.31 : x
2. Step 2: Convert to fraction form
   16,238.67/22,393.83 = 9,866.31/x
3. Step 3: Cross multiply
   16,238.67x = 22,393.83 × 9,866.31
4. Step 4: Simplify right side
   16,238.67x = 220,944,468.87
5. Step 5: Solve for x
   x = 220,944,468.87/16,238.67
6. Step 6: Final answer
   x = 13,606.07