Finding the Fourth Proportional to 16,867.28, 25,298.76 and 5,180.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,867.28 : 25,298.76 = 5,180.24 : x
2. Step 2: Convert to fraction form
   16,867.28/25,298.76 = 5,180.24/x
3. Step 3: Cross multiply
   16,867.28x = 25,298.76 × 5,180.24
4. Step 4: Simplify right side
   16,867.28x = 131,053,648.50
5. Step 5: Solve for x
   x = 131,053,648.50/16,867.28
6. Step 6: Final answer
   x = 7,769.70