Finding the Fourth Proportional to 7,209.27, 10,806.12 and 3,503.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,209.27 : 10,806.12 = 3,503.25 : x
2. Step 2: Convert to fraction form
   7,209.27/10,806.12 = 3,503.25/x
3. Step 3: Cross multiply
   7,209.27x = 10,806.12 × 3,503.25
4. Step 4: Simplify right side
   7,209.27x = 37,856,539.89
5. Step 5: Solve for x
   x = 37,856,539.89/7,209.27
6. Step 6: Final answer
   x = 5,251.09