Finding the Fourth Proportional to 10,715.27, 16,083.27 and 5,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,715.27 : 16,083.27 = 5,172.50 : x
2. Step 2: Convert to fraction form
   10,715.27/16,083.27 = 5,172.50/x
3. Step 3: Cross multiply
   10,715.27x = 16,083.27 × 5,172.50
4. Step 4: Simplify right side
   10,715.27x = 83,190,754.28
5. Step 5: Solve for x
   x = 83,190,754.28/10,715.27
6. Step 6: Final answer
   x = 7,763.76