Finding the Fourth Proportional to 16,942.02, 23,380.83 and 9,389.19

Step by Step Solution

1. Step 1: Write the proportion equation
   16,942.02 : 23,380.83 = 9,389.19 : x
2. Step 2: Convert to fraction form
   16,942.02/23,380.83 = 9,389.19/x
3. Step 3: Cross multiply
   16,942.02x = 23,380.83 × 9,389.19
4. Step 4: Simplify right side
   16,942.02x = 219,527,055.23
5. Step 5: Solve for x
   x = 219,527,055.23/16,942.02
6. Step 6: Final answer
   x = 12,957.55