Finding the Fourth Proportional to 9,667.47, 13,342.18 and 5,419.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.47 : 13,342.18 = 5,419.23 : x
2. Step 2: Convert to fraction form
   9,667.47/13,342.18 = 5,419.23/x
3. Step 3: Cross multiply
   9,667.47x = 13,342.18 × 5,419.23
4. Step 4: Simplify right side
   9,667.47x = 72,304,342.12
5. Step 5: Solve for x
   x = 72,304,342.12/9,667.47
6. Step 6: Final answer
   x = 7,479.14