Finding the Fourth Proportional to 10,015.33, 13,821.10 and 5,539

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015.33 : 13,821.10 = 5,539 : x
2. Step 2: Convert to fraction form
   10,015.33/13,821.10 = 5,539/x
3. Step 3: Cross multiply
   10,015.33x = 13,821.10 × 5,539
4. Step 4: Simplify right side
   10,015.33x = 76,555,072.90
5. Step 5: Solve for x
   x = 76,555,072.90/10,015.33
6. Step 6: Final answer
   x = 7,643.79