Finding the Fourth Proportional to 18,461.89, 25,479.59 and 10,395.80

Step by Step Solution

1. Step 1: Write the proportion equation
   18,461.89 : 25,479.59 = 10,395.80 : x
2. Step 2: Convert to fraction form
   18,461.89/25,479.59 = 10,395.80/x
3. Step 3: Cross multiply
   18,461.89x = 25,479.59 × 10,395.80
4. Step 4: Simplify right side
   18,461.89x = 264,880,721.72
5. Step 5: Solve for x
   x = 264,880,721.72/18,461.89
6. Step 6: Final answer
   x = 14,347.43