Finding the Fourth Proportional to 16,819.31, 25,228.89 and 5,132.49

Step by Step Solution

1. Step 1: Write the proportion equation
   16,819.31 : 25,228.89 = 5,132.49 : x
2. Step 2: Convert to fraction form
   16,819.31/25,228.89 = 5,132.49/x
3. Step 3: Cross multiply
   16,819.31x = 25,228.89 × 5,132.49
4. Step 4: Simplify right side
   16,819.31x = 129,487,025.64
5. Step 5: Solve for x
   x = 129,487,025.64/16,819.31
6. Step 6: Final answer
   x = 7,698.71