Finding the Fourth Proportional to 9,760.56, 13,471.30 and 5,783.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.56 : 13,471.30 = 5,783.64 : x
2. Step 2: Convert to fraction form
   9,760.56/13,471.30 = 5,783.64/x
3. Step 3: Cross multiply
   9,760.56x = 13,471.30 × 5,783.64
4. Step 4: Simplify right side
   9,760.56x = 77,913,149.53
5. Step 5: Solve for x
   x = 77,913,149.53/9,760.56
6. Step 6: Final answer
   x = 7,982.45