Finding the Fourth Proportional to 16,639.03, 22,961.69 and 9,085.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,639.03 : 22,961.69 = 9,085.34 : x
2. Step 2: Convert to fraction form
   16,639.03/22,961.69 = 9,085.34/x
3. Step 3: Cross multiply
   16,639.03x = 22,961.69 × 9,085.34
4. Step 4: Simplify right side
   16,639.03x = 208,614,760.62
5. Step 5: Solve for x
   x = 208,614,760.62/16,639.03
6. Step 6: Final answer
   x = 12,537.68