Finding the Fourth Proportional to 16,155.37, 22,294.28 and 8,985.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,155.37 : 22,294.28 = 8,985.35 : x
2. Step 2: Convert to fraction form
   16,155.37/22,294.28 = 8,985.35/x
3. Step 3: Cross multiply
   16,155.37x = 22,294.28 × 8,985.35
4. Step 4: Simplify right side
   16,155.37x = 200,321,908.80
5. Step 5: Solve for x
   x = 200,321,908.80/16,155.37
6. Step 6: Final answer
   x = 12,399.71