Finding the Fourth Proportional to 10,391.72, 14,339.94 and 5,675.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.72 : 14,339.94 = 5,675.72 : x
2. Step 2: Convert to fraction form
   10,391.72/14,339.94 = 5,675.72/x
3. Step 3: Cross multiply
   10,391.72x = 14,339.94 × 5,675.72
4. Step 4: Simplify right side
   10,391.72x = 81,389,484.26
5. Step 5: Solve for x
   x = 81,389,484.26/10,391.72
6. Step 6: Final answer
   x = 7,832.15