Finding the Fourth Proportional to 9,209.57, 13,807.56 and 3,285.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,209.57 : 13,807.56 = 3,285.23 : x
2. Step 2: Convert to fraction form
   9,209.57/13,807.56 = 3,285.23/x
3. Step 3: Cross multiply
   9,209.57x = 13,807.56 × 3,285.23
4. Step 4: Simplify right side
   9,209.57x = 45,361,010.34
5. Step 5: Solve for x
   x = 45,361,010.34/9,209.57
6. Step 6: Final answer
   x = 4,925.42