Finding the Fourth Proportional to 16,355.08, 22,567.98 and 9,639.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,355.08 : 22,567.98 = 9,639.16 : x
2. Step 2: Convert to fraction form
   16,355.08/22,567.98 = 9,639.16/x
3. Step 3: Cross multiply
   16,355.08x = 22,567.98 × 9,639.16
4. Step 4: Simplify right side
   16,355.08x = 217,536,370.10
5. Step 5: Solve for x
   x = 217,536,370.10/16,355.08
6. Step 6: Final answer
   x = 13,300.84