Finding the Fourth Proportional to 11,067.31, 15,259.59 and 9,043.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,067.31 : 15,259.59 = 9,043.25 : x
2. Step 2: Convert to fraction form
   11,067.31/15,259.59 = 9,043.25/x
3. Step 3: Cross multiply
   11,067.31x = 15,259.59 × 9,043.25
4. Step 4: Simplify right side
   11,067.31x = 137,996,210.97
5. Step 5: Solve for x
   x = 137,996,210.97/11,067.31
6. Step 6: Final answer
   x = 12,468.82