Finding the Fourth Proportional to 9,054.09, 13,581.99 and 3,209.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,054.09 : 13,581.99 = 3,209.31 : x
2. Step 2: Convert to fraction form
   9,054.09/13,581.99 = 3,209.31/x
3. Step 3: Cross multiply
   9,054.09x = 13,581.99 × 3,209.31
4. Step 4: Simplify right side
   9,054.09x = 43,588,816.33
5. Step 5: Solve for x
   x = 43,588,816.33/9,054.09
6. Step 6: Final answer
   x = 4,814.27