Finding the Fourth Proportional to 9,499.30, 13,106.13 and 5,519.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.30 : 13,106.13 = 5,519.65 : x
2. Step 2: Convert to fraction form
   9,499.30/13,106.13 = 5,519.65/x
3. Step 3: Cross multiply
   9,499.30x = 13,106.13 × 5,519.65
4. Step 4: Simplify right side
   9,499.30x = 72,341,250.45
5. Step 5: Solve for x
   x = 72,341,250.45/9,499.30
6. Step 6: Final answer
   x = 7,615.43