Finding the Fourth Proportional to 25,691, 35,456.46 and 14,513.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,691 : 35,456.46 = 14,513.72 : x
2. Step 2: Convert to fraction form
   25,691/35,456.46 = 14,513.72/x
3. Step 3: Cross multiply
   25,691x = 35,456.46 × 14,513.72
4. Step 4: Simplify right side
   25,691x = 514,605,132.63
5. Step 5: Solve for x
   x = 514,605,132.63/25,691
6. Step 6: Final answer
   x = 20,030.56