Finding the Fourth Proportional to 18,498.96, 25,528.82 and 10,945.10

Step by Step Solution

1. Step 1: Write the proportion equation
   18,498.96 : 25,528.82 = 10,945.10 : x
2. Step 2: Convert to fraction form
   18,498.96/25,528.82 = 10,945.10/x
3. Step 3: Cross multiply
   18,498.96x = 25,528.82 × 10,945.10
4. Step 4: Simplify right side
   18,498.96x = 279,415,305.41
5. Step 5: Solve for x
   x = 279,415,305.41/18,498.96
6. Step 6: Final answer
   x = 15,104.38