Finding the Fourth Proportional to 9,667.28, 13,341.95 and 5,419.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.28 : 13,341.95 = 5,419.49 : x
2. Step 2: Convert to fraction form
   9,667.28/13,341.95 = 5,419.49/x
3. Step 3: Cross multiply
   9,667.28x = 13,341.95 × 5,419.49
4. Step 4: Simplify right side
   9,667.28x = 72,306,491.12
5. Step 5: Solve for x
   x = 72,306,491.12/9,667.28
6. Step 6: Final answer
   x = 7,479.51