Finding the Fourth Proportional to 18,422.72, 25,422.72 and 10,464.80

Step by Step Solution

1. Step 1: Write the proportion equation
   18,422.72 : 25,422.72 = 10,464.80 : x
2. Step 2: Convert to fraction form
   18,422.72/25,422.72 = 10,464.80/x
3. Step 3: Cross multiply
   18,422.72x = 25,422.72 × 10,464.80
4. Step 4: Simplify right side
   18,422.72x = 266,043,680.26
5. Step 5: Solve for x
   x = 266,043,680.26/18,422.72
6. Step 6: Final answer
   x = 14,441.06