Finding the Fourth Proportional to 16,895.30, 23,306.69 and 10,520.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,895.30 : 23,306.69 = 10,520.87 : x
2. Step 2: Convert to fraction form
   16,895.30/23,306.69 = 10,520.87/x
3. Step 3: Cross multiply
   16,895.30x = 23,306.69 × 10,520.87
4. Step 4: Simplify right side
   16,895.30x = 245,206,637.31
5. Step 5: Solve for x
   x = 245,206,637.31/16,895.30
6. Step 6: Final answer
   x = 14,513.30