Finding the Fourth Proportional to 9,495.30, 13,100.61 and 5,515.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,495.30 : 13,100.61 = 5,515.65 : x
2. Step 2: Convert to fraction form
   9,495.30/13,100.61 = 5,515.65/x
3. Step 3: Cross multiply
   9,495.30x = 13,100.61 × 5,515.65
4. Step 4: Simplify right side
   9,495.30x = 72,258,379.55
5. Step 5: Solve for x
   x = 72,258,379.55/9,495.30
6. Step 6: Final answer
   x = 7,609.91