Finding the Fourth Proportional to 13,067.25, 18,031.59 and 7,763.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,067.25 : 18,031.59 = 7,763.37 : x
2. Step 2: Convert to fraction form
   13,067.25/18,031.59 = 7,763.37/x
3. Step 3: Cross multiply
   13,067.25x = 18,031.59 × 7,763.37
4. Step 4: Simplify right side
   13,067.25x = 139,985,904.86
5. Step 5: Solve for x
   x = 139,985,904.86/13,067.25
6. Step 6: Final answer
   x = 10,712.73