Finding the Fourth Proportional to 25,805.79, 35,578.69 and 17,309.30

Step by Step Solution

1. Step 1: Write the proportion equation
   25,805.79 : 35,578.69 = 17,309.30 : x
2. Step 2: Convert to fraction form
   25,805.79/35,578.69 = 17,309.30/x
3. Step 3: Cross multiply
   25,805.79x = 35,578.69 × 17,309.30
4. Step 4: Simplify right side
   25,805.79x = 615,842,095.02
5. Step 5: Solve for x
   x = 615,842,095.02/25,805.79
6. Step 6: Final answer
   x = 23,864.49