Finding the Fourth Proportional to 25,722.56, 35,494.71 and 14,391.47

Step by Step Solution

1. Step 1: Write the proportion equation
   25,722.56 : 35,494.71 = 14,391.47 : x
2. Step 2: Convert to fraction form
   25,722.56/35,494.71 = 14,391.47/x
3. Step 3: Cross multiply
   25,722.56x = 35,494.71 × 14,391.47
4. Step 4: Simplify right side
   25,722.56x = 510,821,088.89
5. Step 5: Solve for x
   x = 510,821,088.89/25,722.56
6. Step 6: Final answer
   x = 19,858.87