Finding the Fourth Proportional to 16,957.60, 23,401.76 and 9,404.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,957.60 : 23,401.76 = 9,404.24 : x
2. Step 2: Convert to fraction form
   16,957.60/23,401.76 = 9,404.24/x
3. Step 3: Cross multiply
   16,957.60x = 23,401.76 × 9,404.24
4. Step 4: Simplify right side
   16,957.60x = 220,075,767.46
5. Step 5: Solve for x
   x = 220,075,767.46/16,957.60
6. Step 6: Final answer
   x = 12,978.00