Finding the Fourth Proportional to 11,728.79, 17,594.33 and 3,408.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,728.79 : 17,594.33 = 3,408.88 : x
2. Step 2: Convert to fraction form
   11,728.79/17,594.33 = 3,408.88/x
3. Step 3: Cross multiply
   11,728.79x = 17,594.33 × 3,408.88
4. Step 4: Simplify right side
   11,728.79x = 59,976,959.65
5. Step 5: Solve for x
   x = 59,976,959.65/11,728.79
6. Step 6: Final answer
   x = 5,113.65