Finding the Fourth Proportional to 7,009.69, 10,509.32 and 3,309.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.69 : 10,509.32 = 3,309.81 : x
2. Step 2: Convert to fraction form
   7,009.69/10,509.32 = 3,309.81/x
3. Step 3: Cross multiply
   7,009.69x = 10,509.32 × 3,309.81
4. Step 4: Simplify right side
   7,009.69x = 34,783,835.88
5. Step 5: Solve for x
   x = 34,783,835.88/7,009.69
6. Step 6: Final answer
   x = 4,962.25