Finding the Fourth Proportional to 31,083.93, 42,894.36 and 16,936.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,083.93 : 42,894.36 = 16,936.47 : x
2. Step 2: Convert to fraction form
   31,083.93/42,894.36 = 16,936.47/x
3. Step 3: Cross multiply
   31,083.93x = 42,894.36 × 16,936.47
4. Step 4: Simplify right side
   31,083.93x = 726,479,041.31
5. Step 5: Solve for x
   x = 726,479,041.31/31,083.93
6. Step 6: Final answer
   x = 23,371.53