Finding the Fourth Proportional to 17,369.31, 23,969.62 and 9,411.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,369.31 : 23,969.62 = 9,411.75 : x
2. Step 2: Convert to fraction form
   17,369.31/23,969.62 = 9,411.75/x
3. Step 3: Cross multiply
   17,369.31x = 23,969.62 × 9,411.75
4. Step 4: Simplify right side
   17,369.31x = 225,596,023.98
5. Step 5: Solve for x
   x = 225,596,023.98/17,369.31
6. Step 6: Final answer
   x = 12,988.20