Finding the Fourth Proportional to 18,494.99, 25,523.10 and 10,111.49

Step by Step Solution

1. Step 1: Write the proportion equation
   18,494.99 : 25,523.10 = 10,111.49 : x
2. Step 2: Convert to fraction form
   18,494.99/25,523.10 = 10,111.49/x
3. Step 3: Cross multiply
   18,494.99x = 25,523.10 × 10,111.49
4. Step 4: Simplify right side
   18,494.99x = 258,076,519.86
5. Step 5: Solve for x
   x = 258,076,519.86/18,494.99
6. Step 6: Final answer
   x = 13,953.86