Finding the Fourth Proportional to 18,513.69, 25,547.37 and 10,554.42

Step by Step Solution

1. Step 1: Write the proportion equation
   18,513.69 : 25,547.37 = 10,554.42 : x
2. Step 2: Convert to fraction form
   18,513.69/25,547.37 = 10,554.42/x
3. Step 3: Cross multiply
   18,513.69x = 25,547.37 × 10,554.42
4. Step 4: Simplify right side
   18,513.69x = 269,637,672.88
5. Step 5: Solve for x
   x = 269,637,672.88/18,513.69
6. Step 6: Final answer
   x = 14,564.23