Finding the Fourth Proportional to 9,667.98, 13,339.01 and 5,891.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.98 : 13,339.01 = 5,891.22 : x
2. Step 2: Convert to fraction form
   9,667.98/13,339.01 = 5,891.22/x
3. Step 3: Cross multiply
   9,667.98x = 13,339.01 × 5,891.22
4. Step 4: Simplify right side
   9,667.98x = 78,583,057.22
5. Step 5: Solve for x
   x = 78,583,057.22/9,667.98
6. Step 6: Final answer
   x = 8,128.18