Finding the Fourth Proportional to 10,343.76, 14,274.42 and 5,628.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.76 : 14,274.42 = 5,628.02 : x
2. Step 2: Convert to fraction form
   10,343.76/14,274.42 = 5,628.02/x
3. Step 3: Cross multiply
   10,343.76x = 14,274.42 × 5,628.02
4. Step 4: Simplify right side
   10,343.76x = 80,336,721.25
5. Step 5: Solve for x
   x = 80,336,721.25/10,343.76
6. Step 6: Final answer
   x = 7,766.68