Finding the Fourth Proportional to 25,680.69, 35,439.30 and 14,502.69

Step by Step Solution

1. Step 1: Write the proportion equation
   25,680.69 : 35,439.30 = 14,502.69 : x
2. Step 2: Convert to fraction form
   25,680.69/35,439.30 = 14,502.69/x
3. Step 3: Cross multiply
   25,680.69x = 35,439.30 × 14,502.69
4. Step 4: Simplify right side
   25,680.69x = 513,965,181.72
5. Step 5: Solve for x
   x = 513,965,181.72/25,680.69
6. Step 6: Final answer
   x = 20,013.68