Finding the Fourth Proportional to 10,343.92, 14,274.42 and 5,628.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.92 : 14,274.42 = 5,628.16 : x
2. Step 2: Convert to fraction form
   10,343.92/14,274.42 = 5,628.16/x
3. Step 3: Cross multiply
   10,343.92x = 14,274.42 × 5,628.16
4. Step 4: Simplify right side
   10,343.92x = 80,338,719.67
5. Step 5: Solve for x
   x = 80,338,719.67/10,343.92
6. Step 6: Final answer
   x = 7,766.76