Finding the Fourth Proportional to 8,572.10, 12,849.89 and 3,303.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,572.10 : 12,849.89 = 3,303.23 : x
2. Step 2: Convert to fraction form
   8,572.10/12,849.89 = 3,303.23/x
3. Step 3: Cross multiply
   8,572.10x = 12,849.89 × 3,303.23
4. Step 4: Simplify right side
   8,572.10x = 42,446,061.38
5. Step 5: Solve for x
   x = 42,446,061.38/8,572.10
6. Step 6: Final answer
   x = 4,951.66