Finding the Fourth Proportional to 18,493.38, 25,520.86 and 10,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,493.38 : 25,520.86 = 10,109.88 : x
2. Step 2: Convert to fraction form
   18,493.38/25,520.86 = 10,109.88/x
3. Step 3: Cross multiply
   18,493.38x = 25,520.86 × 10,109.88
4. Step 4: Simplify right side
   18,493.38x = 258,012,832.10
5. Step 5: Solve for x
   x = 258,012,832.10/18,493.38
6. Step 6: Final answer
   x = 13,951.63