Finding the Fourth Proportional to 9,147.68, 12,624.04 and 5,168.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.68 : 12,624.04 = 5,168.71 : x
2. Step 2: Convert to fraction form
   9,147.68/12,624.04 = 5,168.71/x
3. Step 3: Cross multiply
   9,147.68x = 12,624.04 × 5,168.71
4. Step 4: Simplify right side
   9,147.68x = 65,249,938.67
5. Step 5: Solve for x
   x = 65,249,938.67/9,147.68
6. Step 6: Final answer
   x = 7,132.95