Finding the Fourth Proportional to 9,667.37, 13,341.90 and 5,419.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.37 : 13,341.90 = 5,419.15 : x
2. Step 2: Convert to fraction form
   9,667.37/13,341.90 = 5,419.15/x
3. Step 3: Cross multiply
   9,667.37x = 13,341.90 × 5,419.15
4. Step 4: Simplify right side
   9,667.37x = 72,301,724.03
5. Step 5: Solve for x
   x = 72,301,724.03/9,667.37
6. Step 6: Final answer
   x = 7,478.95