Finding the Fourth Proportional to 8,715.57, 13,055.94 and 5,007.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,715.57 : 13,055.94 = 5,007.39 : x
2. Step 2: Convert to fraction form
   8,715.57/13,055.94 = 5,007.39/x
3. Step 3: Cross multiply
   8,715.57x = 13,055.94 × 5,007.39
4. Step 4: Simplify right side
   8,715.57x = 65,376,183.40
5. Step 5: Solve for x
   x = 65,376,183.40/8,715.57
6. Step 6: Final answer
   x = 7,501.08