Finding the Fourth Proportional to 8,073.31, 12,109.63 and 2,809.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.31 : 12,109.63 = 2,809.51 : x
2. Step 2: Convert to fraction form
   8,073.31/12,109.63 = 2,809.51/x
3. Step 3: Cross multiply
   8,073.31x = 12,109.63 × 2,809.51
4. Step 4: Simplify right side
   8,073.31x = 34,022,134.69
5. Step 5: Solve for x
   x = 34,022,134.69/8,073.31
6. Step 6: Final answer
   x = 4,214.15