Finding the Fourth Proportional to 16,757.04, 23,111.76 and 12,279.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,757.04 : 23,111.76 = 12,279.12 : x
2. Step 2: Convert to fraction form
   16,757.04/23,111.76 = 12,279.12/x
3. Step 3: Cross multiply
   16,757.04x = 23,111.76 × 12,279.12
4. Step 4: Simplify right side
   16,757.04x = 283,792,074.45
5. Step 5: Solve for x
   x = 283,792,074.45/16,757.04
6. Step 6: Final answer
   x = 16,935.69