Finding the Fourth Proportional to 11,664.52, 17,489.49 and 3,871.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,664.52 : 17,489.49 = 3,871.51 : x
2. Step 2: Convert to fraction form
   11,664.52/17,489.49 = 3,871.51/x
3. Step 3: Cross multiply
   11,664.52x = 17,489.49 × 3,871.51
4. Step 4: Simplify right side
   11,664.52x = 67,710,735.43
5. Step 5: Solve for x
   x = 67,710,735.43/11,664.52
6. Step 6: Final answer
   x = 5,804.85