Finding the Fourth Proportional to 10,016.77, 13,821.91 and 5,539.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,016.77 : 13,821.91 = 5,539.91 : x
2. Step 2: Convert to fraction form
   10,016.77/13,821.91 = 5,539.91/x
3. Step 3: Cross multiply
   10,016.77x = 13,821.91 × 5,539.91
4. Step 4: Simplify right side
   10,016.77x = 76,572,137.43
5. Step 5: Solve for x
   x = 76,572,137.43/10,016.77
6. Step 6: Final answer
   x = 7,644.39