Finding the Fourth Proportional to 16,683.53, 25,007.87 and 5,581.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,683.53 : 25,007.87 = 5,581.10 : x
2. Step 2: Convert to fraction form
   16,683.53/25,007.87 = 5,581.10/x
3. Step 3: Cross multiply
   16,683.53x = 25,007.87 × 5,581.10
4. Step 4: Simplify right side
   16,683.53x = 139,571,312.17
5. Step 5: Solve for x
   x = 139,571,312.17/16,683.53
6. Step 6: Final answer
   x = 8,365.81