Finding the Fourth Proportional to 13,145.52, 18,141.04 and 7,843.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,145.52 : 18,141.04 = 7,843.44 : x
2. Step 2: Convert to fraction form
   13,145.52/18,141.04 = 7,843.44/x
3. Step 3: Cross multiply
   13,145.52x = 18,141.04 × 7,843.44
4. Step 4: Simplify right side
   13,145.52x = 142,288,158.78
5. Step 5: Solve for x
   x = 142,288,158.78/13,145.52
6. Step 6: Final answer
   x = 10,824.08