Finding the Fourth Proportional to 25,863.31, 35,691.41 and 14,685.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25,863.31 : 35,691.41 = 14,685.31 : x
2. Step 2: Convert to fraction form
   25,863.31/35,691.41 = 14,685.31/x
3. Step 3: Cross multiply
   25,863.31x = 35,691.41 × 14,685.31
4. Step 4: Simplify right side
   25,863.31x = 524,139,420.19
5. Step 5: Solve for x
   x = 524,139,420.19/25,863.31
6. Step 6: Final answer
   x = 20,265.75