Finding the Fourth Proportional to 10,391.20, 14,339.82 and 5,675.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.20 : 14,339.82 = 5,675.44 : x
2. Step 2: Convert to fraction form
   10,391.20/14,339.82 = 5,675.44/x
3. Step 3: Cross multiply
   10,391.20x = 14,339.82 × 5,675.44
4. Step 4: Simplify right side
   10,391.20x = 81,384,788.02
5. Step 5: Solve for x
   x = 81,384,788.02/10,391.20
6. Step 6: Final answer
   x = 7,832.09