Finding the Fourth Proportional to 16,783.34, 23,126.84 and 12,983.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,783.34 : 23,126.84 = 12,983.42 : x
2. Step 2: Convert to fraction form
   16,783.34/23,126.84 = 12,983.42/x
3. Step 3: Cross multiply
   16,783.34x = 23,126.84 × 12,983.42
4. Step 4: Simplify right side
   16,783.34x = 300,265,476.99
5. Step 5: Solve for x
   x = 300,265,476.99/16,783.34
6. Step 6: Final answer
   x = 17,890.69