Finding the Fourth Proportional to 31,004.44, 42,786.43 and 16,857.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,004.44 : 42,786.43 = 16,857.59 : x
2. Step 2: Convert to fraction form
   31,004.44/42,786.43 = 16,857.59/x
3. Step 3: Cross multiply
   31,004.44x = 42,786.43 × 16,857.59
4. Step 4: Simplify right side
   31,004.44x = 721,275,838.43
5. Step 5: Solve for x
   x = 721,275,838.43/31,004.44
6. Step 6: Final answer
   x = 23,263.63