Finding the Fourth Proportional to 8,006.54, 12,009.78 and 2,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,006.54 : 12,009.78 = 2,162.72 : x
2. Step 2: Convert to fraction form
   8,006.54/12,009.78 = 2,162.72/x
3. Step 3: Cross multiply
   8,006.54x = 12,009.78 × 2,162.72
4. Step 4: Simplify right side
   8,006.54x = 25,973,791.40
5. Step 5: Solve for x
   x = 25,973,791.40/8,006.54
6. Step 6: Final answer
   x = 3,244.07