Finding the Fourth Proportional to 6,690.72, 10,028.52 and 5,042.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,690.72 : 10,028.52 = 5,042.10 : x
2. Step 2: Convert to fraction form
   6,690.72/10,028.52 = 5,042.10/x
3. Step 3: Cross multiply
   6,690.72x = 10,028.52 × 5,042.10
4. Step 4: Simplify right side
   6,690.72x = 50,564,800.69
5. Step 5: Solve for x
   x = 50,564,800.69/6,690.72
6. Step 6: Final answer
   x = 7,557.45