Finding the Fourth Proportional to 17,238.80, 23,789.32 and 9,581.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,238.80 : 23,789.32 = 9,581.79 : x
2. Step 2: Convert to fraction form
   17,238.80/23,789.32 = 9,581.79/x
3. Step 3: Cross multiply
   17,238.80x = 23,789.32 × 9,581.79
4. Step 4: Simplify right side
   17,238.80x = 227,944,360.69
5. Step 5: Solve for x
   x = 227,944,360.69/17,238.80
6. Step 6: Final answer
   x = 13,222.75