Finding the Fourth Proportional to 16,725.79, 25,085.49 and 8,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,725.79 : 25,085.49 = 8,403.50 : x
2. Step 2: Convert to fraction form
   16,725.79/25,085.49 = 8,403.50/x
3. Step 3: Cross multiply
   16,725.79x = 25,085.49 × 8,403.50
4. Step 4: Simplify right side
   16,725.79x = 210,805,747.77
5. Step 5: Solve for x
   x = 210,805,747.77/16,725.79
6. Step 6: Final answer
   x = 12,603.64