Finding the Fourth Proportional to 8,753.10, 13,131.81 and 3,209.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,753.10 : 13,131.81 = 3,209.46 : x
2. Step 2: Convert to fraction form
   8,753.10/13,131.81 = 3,209.46/x
3. Step 3: Cross multiply
   8,753.10x = 13,131.81 × 3,209.46
4. Step 4: Simplify right side
   8,753.10x = 42,146,018.92
5. Step 5: Solve for x
   x = 42,146,018.92/8,753.10
6. Step 6: Final answer
   x = 4,814.98