Finding the Fourth Proportional to 10,344.48, 14,275.20 and 5,628.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,344.48 : 14,275.20 = 5,628.72 : x
2. Step 2: Convert to fraction form
   10,344.48/14,275.20 = 5,628.72/x
3. Step 3: Cross multiply
   10,344.48x = 14,275.20 × 5,628.72
4. Step 4: Simplify right side
   10,344.48x = 80,351,103.74
5. Step 5: Solve for x
   x = 80,351,103.74/10,344.48
6. Step 6: Final answer
   x = 7,767.53