Finding the Fourth Proportional to 11,964.49, 17,945.37 and 3,200.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,964.49 : 17,945.37 = 3,200.09 : x
2. Step 2: Convert to fraction form
   11,964.49/17,945.37 = 3,200.09/x
3. Step 3: Cross multiply
   11,964.49x = 17,945.37 × 3,200.09
4. Step 4: Simplify right side
   11,964.49x = 57,426,799.08
5. Step 5: Solve for x
   x = 57,426,799.08/11,964.49
6. Step 6: Final answer
   x = 4,799.77