Finding the Fourth Proportional to 10,343.91, 14,274.57 and 5,628.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.91 : 14,274.57 = 5,628.18 : x
2. Step 2: Convert to fraction form
   10,343.91/14,274.57 = 5,628.18/x
3. Step 3: Cross multiply
   10,343.91x = 14,274.57 × 5,628.18
4. Step 4: Simplify right side
   10,343.91x = 80,339,849.38
5. Step 5: Solve for x
   x = 80,339,849.38/10,343.91
6. Step 6: Final answer
   x = 7,766.87