Finding the Fourth Proportional to 9,768.36, 13,478.76 and 5,576.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.36 : 13,478.76 = 5,576.52 : x
2. Step 2: Convert to fraction form
   9,768.36/13,478.76 = 5,576.52/x
3. Step 3: Cross multiply
   9,768.36x = 13,478.76 × 5,576.52
4. Step 4: Simplify right side
   9,768.36x = 75,164,574.72
5. Step 5: Solve for x
   x = 75,164,574.72/9,768.36
6. Step 6: Final answer
   x = 7,694.70