Finding the Fourth Proportional to 8,769.28, 12,089.04 and 5,409.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769.28 : 12,089.04 = 5,409.84 : x
2. Step 2: Convert to fraction form
   8,769.28/12,089.04 = 5,409.84/x
3. Step 3: Cross multiply
   8,769.28x = 12,089.04 × 5,409.84
4. Step 4: Simplify right side
   8,769.28x = 65,399,772.15
5. Step 5: Solve for x
   x = 65,399,772.15/8,769.28
6. Step 6: Final answer
   x = 7,457.83