Finding the Fourth Proportional to 9,680.00, 13,271.40 and 9,505.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,680.00 : 13,271.40 = 9,505.04 : x
2. Step 2: Convert to fraction form
   9,680.00/13,271.40 = 9,505.04/x
3. Step 3: Cross multiply
   9,680.00x = 13,271.40 × 9,505.04
4. Step 4: Simplify right side
   9,680.00x = 126,145,121.50
5. Step 5: Solve for x
   x = 126,145,121.50/9,680.00
6. Step 6: Final answer
   x = 13,031.53