Finding the Fourth Proportional to 9,489.75, 13,095.72 and 5,513.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,489.75 : 13,095.72 = 5,513.10 : x
2. Step 2: Convert to fraction form
   9,489.75/13,095.72 = 5,513.10/x
3. Step 3: Cross multiply
   9,489.75x = 13,095.72 × 5,513.10
4. Step 4: Simplify right side
   9,489.75x = 72,198,013.93
5. Step 5: Solve for x
   x = 72,198,013.93/9,489.75
6. Step 6: Final answer
   x = 7,608.00