Finding the Fourth Proportional to 13,009.82, 17,955.66 and 7,976.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,009.82 : 17,955.66 = 7,976.82 : x
2. Step 2: Convert to fraction form
   13,009.82/17,955.66 = 7,976.82/x
3. Step 3: Cross multiply
   13,009.82x = 17,955.66 × 7,976.82
4. Step 4: Simplify right side
   13,009.82x = 143,229,067.80
5. Step 5: Solve for x
   x = 143,229,067.80/13,009.82
6. Step 6: Final answer
   x = 11,009.30