Finding the Fourth Proportional to 25,540.32, 35,245 and 14,783.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,540.32 : 35,245 = 14,783.72 : x
2. Step 2: Convert to fraction form
   25,540.32/35,245 = 14,783.72/x
3. Step 3: Cross multiply
   25,540.32x = 35,245 × 14,783.72
4. Step 4: Simplify right side
   25,540.32x = 521,052,211.40
5. Step 5: Solve for x
   x = 521,052,211.40/25,540.32
6. Step 6: Final answer
   x = 20,401.16