Finding the Fourth Proportional to 11,724.90, 17,584.59 and 3,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,724.90 : 17,584.59 = 3,402.72 : x
2. Step 2: Convert to fraction form
   11,724.90/17,584.59 = 3,402.72/x
3. Step 3: Cross multiply
   11,724.90x = 17,584.59 × 3,402.72
4. Step 4: Simplify right side
   11,724.90x = 59,835,436.08
5. Step 5: Solve for x
   x = 59,835,436.08/11,724.90
6. Step 6: Final answer
   x = 5,103.28