Finding the Fourth Proportional to 16,957.80, 23,401.82 and 9,404.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,957.80 : 23,401.82 = 9,404.22 : x
2. Step 2: Convert to fraction form
   16,957.80/23,401.82 = 9,404.22/x
3. Step 3: Cross multiply
   16,957.80x = 23,401.82 × 9,404.22
4. Step 4: Simplify right side
   16,957.80x = 220,075,863.68
5. Step 5: Solve for x
   x = 220,075,863.68/16,957.80
6. Step 6: Final answer
   x = 12,977.85