Finding the Fourth Proportional to 25,078.56, 34,608.72 and 14,470.40

Step by Step Solution

1. Step 1: Write the proportion equation
   25,078.56 : 34,608.72 = 14,470.40 : x
2. Step 2: Convert to fraction form
   25,078.56/34,608.72 = 14,470.40/x
3. Step 3: Cross multiply
   25,078.56x = 34,608.72 × 14,470.40
4. Step 4: Simplify right side
   25,078.56x = 500,802,021.89
5. Step 5: Solve for x
   x = 500,802,021.89/25,078.56
6. Step 6: Final answer
   x = 19,969.33