Finding the Fourth Proportional to 9,995.55, 13,793.97 and 5,519.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,995.55 : 13,793.97 = 5,519.22 : x
2. Step 2: Convert to fraction form
   9,995.55/13,793.97 = 5,519.22/x
3. Step 3: Cross multiply
   9,995.55x = 13,793.97 × 5,519.22
4. Step 4: Simplify right side
   9,995.55x = 76,131,955.10
5. Step 5: Solve for x
   x = 76,131,955.10/9,995.55
6. Step 6: Final answer
   x = 7,616.58