Finding the Fourth Proportional to 9,369.27, 12,928.12 and 5,783.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,369.27 : 12,928.12 = 5,783.13 : x
2. Step 2: Convert to fraction form
   9,369.27/12,928.12 = 5,783.13/x
3. Step 3: Cross multiply
   9,369.27x = 12,928.12 × 5,783.13
4. Step 4: Simplify right side
   9,369.27x = 74,764,998.62
5. Step 5: Solve for x
   x = 74,764,998.62/9,369.27
6. Step 6: Final answer
   x = 7,979.81