Finding the Fourth Proportional to 8,940.10, 13,405.83 and 5,243.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,940.10 : 13,405.83 = 5,243.53 : x
2. Step 2: Convert to fraction form
   8,940.10/13,405.83 = 5,243.53/x
3. Step 3: Cross multiply
   8,940.10x = 13,405.83 × 5,243.53
4. Step 4: Simplify right side
   8,940.10x = 70,293,871.78
5. Step 5: Solve for x
   x = 70,293,871.78/8,940.10
6. Step 6: Final answer
   x = 7,862.76