Finding the Fourth Proportional to 10,813.50, 16,222.87 and 5,265.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,813.50 : 16,222.87 = 5,265.59 : x
2. Step 2: Convert to fraction form
   10,813.50/16,222.87 = 5,265.59/x
3. Step 3: Cross multiply
   10,813.50x = 16,222.87 × 5,265.59
4. Step 4: Simplify right side
   10,813.50x = 85,422,922.32
5. Step 5: Solve for x
   x = 85,422,922.32/10,813.50
6. Step 6: Final answer
   x = 7,899.65