Finding the Fourth Proportional to 8,003.81, 12,007.54 and 2,809.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.81 : 12,007.54 = 2,809.69 : x
2. Step 2: Convert to fraction form
   8,003.81/12,007.54 = 2,809.69/x
3. Step 3: Cross multiply
   8,003.81x = 12,007.54 × 2,809.69
4. Step 4: Simplify right side
   8,003.81x = 33,737,438.56
5. Step 5: Solve for x
   x = 33,737,438.56/8,003.81
6. Step 6: Final answer
   x = 4,215.17