Finding the Fourth Proportional to 6,813.47, 10,215.50 and 3,475.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,813.47 : 10,215.50 = 3,475.25 : x
2. Step 2: Convert to fraction form
   6,813.47/10,215.50 = 3,475.25/x
3. Step 3: Cross multiply
   6,813.47x = 10,215.50 × 3,475.25
4. Step 4: Simplify right side
   6,813.47x = 35,501,347.92
5. Step 5: Solve for x
   x = 35,501,347.92/6,813.47
6. Step 6: Final answer
   x = 5,210.46