Finding the Fourth Proportional to 4,680.16, 7,028.57 and 4,491.99

Step by Step Solution

1. Step 1: Write the proportion equation
   4,680.16 : 7,028.57 = 4,491.99 : x
2. Step 2: Convert to fraction form
   4,680.16/7,028.57 = 4,491.99/x
3. Step 3: Cross multiply
   4,680.16x = 7,028.57 × 4,491.99
4. Step 4: Simplify right side
   4,680.16x = 31,572,277.38
5. Step 5: Solve for x
   x = 31,572,277.38/4,680.16
6. Step 6: Final answer
   x = 6,745.99