Finding the Fourth Proportional to 18,465.37, 25,484.35 and 10,399.10

Step by Step Solution

1. Step 1: Write the proportion equation
   18,465.37 : 25,484.35 = 10,399.10 : x
2. Step 2: Convert to fraction form
   18,465.37/25,484.35 = 10,399.10/x
3. Step 3: Cross multiply
   18,465.37x = 25,484.35 × 10,399.10
4. Step 4: Simplify right side
   18,465.37x = 265,014,150.67
5. Step 5: Solve for x
   x = 265,014,150.67/18,465.37
6. Step 6: Final answer
   x = 14,351.96