Finding the Fourth Proportional to 25,144.56, 34,680.06 and 18,427.68

Step by Step Solution

1. Step 1: Write the proportion equation
   25,144.56 : 34,680.06 = 18,427.68 : x
2. Step 2: Convert to fraction form
   25,144.56/34,680.06 = 18,427.68/x
3. Step 3: Cross multiply
   25,144.56x = 34,680.06 × 18,427.68
4. Step 4: Simplify right side
   25,144.56x = 639,073,048.06
5. Step 5: Solve for x
   x = 639,073,048.06/25,144.56
6. Step 6: Final answer
   x = 25,415.96