Finding the Fourth Proportional to 9,147.19, 12,623.37 and 5,168.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.19 : 12,623.37 = 5,168.22 : x
2. Step 2: Convert to fraction form
   9,147.19/12,623.37 = 5,168.22/x
3. Step 3: Cross multiply
   9,147.19x = 12,623.37 × 5,168.22
4. Step 4: Simplify right side
   9,147.19x = 65,240,353.30
5. Step 5: Solve for x
   x = 65,240,353.30/9,147.19
6. Step 6: Final answer
   x = 7,132.28