Finding the Fourth Proportional to 9,147.94, 12,624.09 and 5,168.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.94 : 12,624.09 = 5,168.98 : x
2. Step 2: Convert to fraction form
   9,147.94/12,624.09 = 5,168.98/x
3. Step 3: Cross multiply
   9,147.94x = 12,624.09 × 5,168.98
4. Step 4: Simplify right side
   9,147.94x = 65,253,668.73
5. Step 5: Solve for x
   x = 65,253,668.73/9,147.94
6. Step 6: Final answer
   x = 7,133.15