Finding the Fourth Proportional to 16,857.80, 23,263.34 and 9,304.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,857.80 : 23,263.34 = 9,304.04 : x
2. Step 2: Convert to fraction form
   16,857.80/23,263.34 = 9,304.04/x
3. Step 3: Cross multiply
   16,857.80x = 23,263.34 × 9,304.04
4. Step 4: Simplify right side
   16,857.80x = 216,443,045.89
5. Step 5: Solve for x
   x = 216,443,045.89/16,857.80
6. Step 6: Final answer
   x = 12,839.34