Finding the Fourth Proportional to 16,958.54, 23,401.64 and 9,404.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,958.54 : 23,401.64 = 9,404.59 : x
2. Step 2: Convert to fraction form
   16,958.54/23,401.64 = 9,404.59/x
3. Step 3: Cross multiply
   16,958.54x = 23,401.64 × 9,404.59
4. Step 4: Simplify right side
   16,958.54x = 220,082,829.53
5. Step 5: Solve for x
   x = 220,082,829.53/16,958.54
6. Step 6: Final answer
   x = 12,977.70