Finding the Fourth Proportional to 9,499.53, 13,106.47 and 5,519.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.53 : 13,106.47 = 5,519.87 : x
2. Step 2: Convert to fraction form
   9,499.53/13,106.47 = 5,519.87/x
3. Step 3: Cross multiply
   9,499.53x = 13,106.47 × 5,519.87
4. Step 4: Simplify right side
   9,499.53x = 72,346,010.56
5. Step 5: Solve for x
   x = 72,346,010.56/9,499.53
6. Step 6: Final answer
   x = 7,615.75