Finding the Fourth Proportional to 6,411.24, 9,600.78 and 4,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.24 : 9,600.78 = 4,064.12 : x
2. Step 2: Convert to fraction form
   6,411.24/9,600.78 = 4,064.12/x
3. Step 3: Cross multiply
   6,411.24x = 9,600.78 × 4,064.12
4. Step 4: Simplify right side
   6,411.24x = 39,018,722.01
5. Step 5: Solve for x
   x = 39,018,722.01/6,411.24
6. Step 6: Final answer
   x = 6,085.99