Finding the Fourth Proportional to 7,209.57, 10,810.17 and 3,507.13

Step by Step Solution

1. Step 1: Write the proportion equation
   7,209.57 : 10,810.17 = 3,507.13 : x
2. Step 2: Convert to fraction form
   7,209.57/10,810.17 = 3,507.13/x
3. Step 3: Cross multiply
   7,209.57x = 10,810.17 × 3,507.13
4. Step 4: Simplify right side
   7,209.57x = 37,912,671.51
5. Step 5: Solve for x
   x = 37,912,671.51/7,209.57
6. Step 6: Final answer
   x = 5,258.66