Finding the Fourth Proportional to 10,715.16, 16,083.13 and 5,172.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,715.16 : 16,083.13 = 5,172.41 : x
2. Step 2: Convert to fraction form
   10,715.16/16,083.13 = 5,172.41/x
3. Step 3: Cross multiply
   10,715.16x = 16,083.13 × 5,172.41
4. Step 4: Simplify right side
   10,715.16x = 83,188,449.10
5. Step 5: Solve for x
   x = 83,188,449.10/10,715.16
6. Step 6: Final answer
   x = 7,763.62