Finding the Fourth Proportional to 9,498.53, 13,105.09 and 5,518.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.53 : 13,105.09 = 5,518.87 : x
2. Step 2: Convert to fraction form
   9,498.53/13,105.09 = 5,518.87/x
3. Step 3: Cross multiply
   9,498.53x = 13,105.09 × 5,518.87
4. Step 4: Simplify right side
   9,498.53x = 72,325,288.05
5. Step 5: Solve for x
   x = 72,325,288.05/9,498.53
6. Step 6: Final answer
   x = 7,614.37