Finding the Fourth Proportional to 16,859.96, 23,265.90 and 9,406.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,859.96 : 23,265.90 = 9,406.52 : x
2. Step 2: Convert to fraction form
   16,859.96/23,265.90 = 9,406.52/x
3. Step 3: Cross multiply
   16,859.96x = 23,265.90 × 9,406.52
4. Step 4: Simplify right side
   16,859.96x = 218,851,153.67
5. Step 5: Solve for x
   x = 218,851,153.67/16,859.96
6. Step 6: Final answer
   x = 12,980.53