Finding the Fourth Proportional to 17,261.72, 23,819.24 and 9,707.89

Step by Step Solution

1. Step 1: Write the proportion equation
   17,261.72 : 23,819.24 = 9,707.89 : x
2. Step 2: Convert to fraction form
   17,261.72/23,819.24 = 9,707.89/x
3. Step 3: Cross multiply
   17,261.72x = 23,819.24 × 9,707.89
4. Step 4: Simplify right side
   17,261.72x = 231,234,394.17
5. Step 5: Solve for x
   x = 231,234,394.17/17,261.72
6. Step 6: Final answer
   x = 13,395.79