Finding the Fourth Proportional to 12,843.94, 17,726.30 and 7,539.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843.94 : 17,726.30 = 7,539.25 : x
2. Step 2: Convert to fraction form
   12,843.94/17,726.30 = 7,539.25/x
3. Step 3: Cross multiply
   12,843.94x = 17,726.30 × 7,539.25
4. Step 4: Simplify right side
   12,843.94x = 133,643,007.28
5. Step 5: Solve for x
   x = 133,643,007.28/12,843.94
6. Step 6: Final answer
   x = 10,405.14