Finding the Fourth Proportional to 10,866.15, 16,293.15 and 5,015.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,866.15 : 16,293.15 = 5,015.52 : x
2. Step 2: Convert to fraction form
   10,866.15/16,293.15 = 5,015.52/x
3. Step 3: Cross multiply
   10,866.15x = 16,293.15 × 5,015.52
4. Step 4: Simplify right side
   10,866.15x = 81,718,619.69
5. Step 5: Solve for x
   x = 81,718,619.69/10,866.15
6. Step 6: Final answer
   x = 7,520.48