Finding the Fourth Proportional to 31,142.56, 42,976.73 and 16,995.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142.56 : 42,976.73 = 16,995.41 : x
2. Step 2: Convert to fraction form
   31,142.56/42,976.73 = 16,995.41/x
3. Step 3: Cross multiply
   31,142.56x = 42,976.73 × 16,995.41
4. Step 4: Simplify right side
   31,142.56x = 730,406,954.39
5. Step 5: Solve for x
   x = 730,406,954.39/31,142.56
6. Step 6: Final answer
   x = 23,453.66