Finding the Fourth Proportional to 31,080.89, 42,891.63 and 16,933.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,080.89 : 42,891.63 = 16,933.73 : x
2. Step 2: Convert to fraction form
   31,080.89/42,891.63 = 16,933.73/x
3. Step 3: Cross multiply
   31,080.89x = 42,891.63 × 16,933.73
4. Step 4: Simplify right side
   31,080.89x = 726,315,197.01
5. Step 5: Solve for x
   x = 726,315,197.01/31,080.89
6. Step 6: Final answer
   x = 23,368.55