Finding the Fourth Proportional to 18,466.55, 25,477.83 and 10,913.10

Step by Step Solution

1. Step 1: Write the proportion equation
   18,466.55 : 25,477.83 = 10,913.10 : x
2. Step 2: Convert to fraction form
   18,466.55/25,477.83 = 10,913.10/x
3. Step 3: Cross multiply
   18,466.55x = 25,477.83 × 10,913.10
4. Step 4: Simplify right side
   18,466.55x = 278,042,106.57
5. Step 5: Solve for x
   x = 278,042,106.57/18,466.55
6. Step 6: Final answer
   x = 15,056.53