Finding the Fourth Proportional to 3,245.05, 4,472.98 and 3,099.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,245.05 : 4,472.98 = 3,099.25 : x
2. Step 2: Convert to fraction form
   3,245.05/4,472.98 = 3,099.25/x
3. Step 3: Cross multiply
   3,245.05x = 4,472.98 × 3,099.25
4. Step 4: Simplify right side
   3,245.05x = 13,862,883.27
5. Step 5: Solve for x
   x = 13,862,883.27/3,245.05
6. Step 6: Final answer
   x = 4,272.01