Finding the Fourth Proportional to 9,995.96, 13,794.35 and 5,519.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,995.96 : 13,794.35 = 5,519.72 : x
2. Step 2: Convert to fraction form
   9,995.96/13,794.35 = 5,519.72/x
3. Step 3: Cross multiply
   9,995.96x = 13,794.35 × 5,519.72
4. Step 4: Simplify right side
   9,995.96x = 76,140,949.58
5. Step 5: Solve for x
   x = 76,140,949.58/9,995.96
6. Step 6: Final answer
   x = 7,617.17