Finding the Fourth Proportional to 12,913, 17,819.94 and 7,025

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913 : 17,819.94 = 7,025 : x
2. Step 2: Convert to fraction form
   12,913/17,819.94 = 7,025/x
3. Step 3: Cross multiply
   12,913x = 17,819.94 × 7,025
4. Step 4: Simplify right side
   12,913x = 125,185,078.50
5. Step 5: Solve for x
   x = 125,185,078.50/12,913
6. Step 6: Final answer
   x = 9,694.50