Finding the Fourth Proportional to 8,131.80, 12,173.94 and 7,353.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.80 : 12,173.94 = 7,353.59 : x
2. Step 2: Convert to fraction form
   8,131.80/12,173.94 = 7,353.59/x
3. Step 3: Cross multiply
   8,131.80x = 12,173.94 × 7,353.59
4. Step 4: Simplify right side
   8,131.80x = 89,522,163.44
5. Step 5: Solve for x
   x = 89,522,163.44/8,131.80
6. Step 6: Final answer
   x = 11,008.90