Finding the Fourth Proportional to 18,462.41, 25,499.37 and 13,449.05

Step by Step Solution

1. Step 1: Write the proportion equation
   18,462.41 : 25,499.37 = 13,449.05 : x
2. Step 2: Convert to fraction form
   18,462.41/25,499.37 = 13,449.05/x
3. Step 3: Cross multiply
   18,462.41x = 25,499.37 × 13,449.05
4. Step 4: Simplify right side
   18,462.41x = 342,942,302.10
5. Step 5: Solve for x
   x = 342,942,302.10/18,462.41
6. Step 6: Final answer
   x = 18,575.16