Finding the Fourth Proportional to 16,685.19, 25,032.51 and 8,355.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,685.19 : 25,032.51 = 8,355.15 : x
2. Step 2: Convert to fraction form
   16,685.19/25,032.51 = 8,355.15/x
3. Step 3: Cross multiply
   16,685.19x = 25,032.51 × 8,355.15
4. Step 4: Simplify right side
   16,685.19x = 209,150,375.93
5. Step 5: Solve for x
   x = 209,150,375.93/16,685.19
6. Step 6: Final answer
   x = 12,535.09