Finding the Fourth Proportional to 11,804.37, 17,709.15 and 3,909.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,804.37 : 17,709.15 = 3,909.30 : x
2. Step 2: Convert to fraction form
   11,804.37/17,709.15 = 3,909.30/x
3. Step 3: Cross multiply
   11,804.37x = 17,709.15 × 3,909.30
4. Step 4: Simplify right side
   11,804.37x = 69,230,380.10
5. Step 5: Solve for x
   x = 69,230,380.10/11,804.37
6. Step 6: Final answer
   x = 5,864.81