Finding the Fourth Proportional to 18,171, 25,078.06 and 10,105.46

Step by Step Solution

1. Step 1: Write the proportion equation
   18,171 : 25,078.06 = 10,105.46 : x
2. Step 2: Convert to fraction form
   18,171/25,078.06 = 10,105.46/x
3. Step 3: Cross multiply
   18,171x = 25,078.06 × 10,105.46
4. Step 4: Simplify right side
   18,171x = 253,425,332.21
5. Step 5: Solve for x
   x = 253,425,332.21/18,171
6. Step 6: Final answer
   x = 13,946.69