Finding the Fourth Proportional to 10,772.26, 16,141.86 and 7,249.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,772.26 : 16,141.86 = 7,249.23 : x
2. Step 2: Convert to fraction form
   10,772.26/16,141.86 = 7,249.23/x
3. Step 3: Cross multiply
   10,772.26x = 16,141.86 × 7,249.23
4. Step 4: Simplify right side
   10,772.26x = 117,016,055.77
5. Step 5: Solve for x
   x = 117,016,055.77/10,772.26
6. Step 6: Final answer
   x = 10,862.72