Finding the Fourth Proportional to 16,685.86, 25,015.74 and 8,361.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,685.86 : 25,015.74 = 8,361.58 : x
2. Step 2: Convert to fraction form
   16,685.86/25,015.74 = 8,361.58/x
3. Step 3: Cross multiply
   16,685.86x = 25,015.74 × 8,361.58
4. Step 4: Simplify right side
   16,685.86x = 209,171,111.27
5. Step 5: Solve for x
   x = 209,171,111.27/16,685.86
6. Step 6: Final answer
   x = 12,535.83