Finding the Fourth Proportional to 17,057.61, 23,539.94 and 9,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,057.61 : 23,539.94 = 9,401.15 : x
2. Step 2: Convert to fraction form
   17,057.61/23,539.94 = 9,401.15/x
3. Step 3: Cross multiply
   17,057.61x = 23,539.94 × 9,401.15
4. Step 4: Simplify right side
   17,057.61x = 221,302,506.93
5. Step 5: Solve for x
   x = 221,302,506.93/17,057.61
6. Step 6: Final answer
   x = 12,973.83