Finding the Fourth Proportional to 10,343.87, 14,274.46 and 5,628.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.87 : 14,274.46 = 5,628.15 : x
2. Step 2: Convert to fraction form
   10,343.87/14,274.46 = 5,628.15/x
3. Step 3: Cross multiply
   10,343.87x = 14,274.46 × 5,628.15
4. Step 4: Simplify right side
   10,343.87x = 80,338,787.98
5. Step 5: Solve for x
   x = 80,338,787.98/10,343.87
6. Step 6: Final answer
   x = 7,766.81