Finding the Fourth Proportional to 10,837.83, 16,253.50 and 5,640.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,837.83 : 16,253.50 = 5,640.87 : x
2. Step 2: Convert to fraction form
   10,837.83/16,253.50 = 5,640.87/x
3. Step 3: Cross multiply
   10,837.83x = 16,253.50 × 5,640.87
4. Step 4: Simplify right side
   10,837.83x = 91,683,880.55
5. Step 5: Solve for x
   x = 91,683,880.55/10,837.83
6. Step 6: Final answer
   x = 8,459.62