Finding the Fourth Proportional to 11,401.70, 17,100.84 and 3,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.70 : 17,100.84 = 3,609.50 : x
2. Step 2: Convert to fraction form
   11,401.70/17,100.84 = 3,609.50/x
3. Step 3: Cross multiply
   11,401.70x = 17,100.84 × 3,609.50
4. Step 4: Simplify right side
   11,401.70x = 61,725,481.98
5. Step 5: Solve for x
   x = 61,725,481.98/11,401.70
6. Step 6: Final answer
   x = 5,413.71