Finding the Fourth Proportional to 8,004.86, 12,005.67 and 2,160.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,004.86 : 12,005.67 = 2,160.10 : x
2. Step 2: Convert to fraction form
   8,004.86/12,005.67 = 2,160.10/x
3. Step 3: Cross multiply
   8,004.86x = 12,005.67 × 2,160.10
4. Step 4: Simplify right side
   8,004.86x = 25,933,458.72
5. Step 5: Solve for x
   x = 25,933,458.72/8,004.86
6. Step 6: Final answer
   x = 3,239.71