Finding the Fourth Proportional to 7,530.67, 10,387.17 and 5,168.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,530.67 : 10,387.17 = 5,168.71 : x
2. Step 2: Convert to fraction form
   7,530.67/10,387.17 = 5,168.71/x
3. Step 3: Cross multiply
   7,530.67x = 10,387.17 × 5,168.71
4. Step 4: Simplify right side
   7,530.67x = 53,688,282.43
5. Step 5: Solve for x
   x = 53,688,282.43/7,530.67
6. Step 6: Final answer
   x = 7,129.28