Finding the Fourth Proportional to 17,339.87, 23,929.10 and 9,786.51

Step by Step Solution

1. Step 1: Write the proportion equation
   17,339.87 : 23,929.10 = 9,786.51 : x
2. Step 2: Convert to fraction form
   17,339.87/23,929.10 = 9,786.51/x
3. Step 3: Cross multiply
   17,339.87x = 23,929.10 × 9,786.51
4. Step 4: Simplify right side
   17,339.87x = 234,182,327.51
5. Step 5: Solve for x
   x = 234,182,327.51/17,339.87
6. Step 6: Final answer
   x = 13,505.43