Finding the Fourth Proportional to 10,343.71, 14,274.63 and 5,628.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.71 : 14,274.63 = 5,628.31 : x
2. Step 2: Convert to fraction form
   10,343.71/14,274.63 = 5,628.31/x
3. Step 3: Cross multiply
   10,343.71x = 14,274.63 × 5,628.31
4. Step 4: Simplify right side
   10,343.71x = 80,342,042.78
5. Step 5: Solve for x
   x = 80,342,042.78/10,343.71
6. Step 6: Final answer
   x = 7,767.24