Finding the Fourth Proportional to 7,428.72, 10,249.56 and 5,851.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,428.72 : 10,249.56 = 5,851.92 : x
2. Step 2: Convert to fraction form
   7,428.72/10,249.56 = 5,851.92/x
3. Step 3: Cross multiply
   7,428.72x = 10,249.56 × 5,851.92
4. Step 4: Simplify right side
   7,428.72x = 59,979,605.16
5. Step 5: Solve for x
   x = 59,979,605.16/7,428.72
6. Step 6: Final answer
   x = 8,074.02