Finding the Fourth Proportional to 10,418.53, 15,621.72 and 4,568.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,418.53 : 15,621.72 = 4,568.71 : x
2. Step 2: Convert to fraction form
   10,418.53/15,621.72 = 4,568.71/x
3. Step 3: Cross multiply
   10,418.53x = 15,621.72 × 4,568.71
4. Step 4: Simplify right side
   10,418.53x = 71,371,108.38
5. Step 5: Solve for x
   x = 71,371,108.38/10,418.53
6. Step 6: Final answer
   x = 6,850.40