Finding the Fourth Proportional to 16,715.76, 25,056.76 and 10,480.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,715.76 : 25,056.76 = 10,480.15 : x
2. Step 2: Convert to fraction form
   16,715.76/25,056.76 = 10,480.15/x
3. Step 3: Cross multiply
   16,715.76x = 25,056.76 × 10,480.15
4. Step 4: Simplify right side
   16,715.76x = 262,598,603.31
5. Step 5: Solve for x
   x = 262,598,603.31/16,715.76
6. Step 6: Final answer
   x = 15,709.64