Finding the Fourth Proportional to 31,030.89, 42,822.50 and 16,883.97

Step by Step Solution

1. Step 1: Write the proportion equation
   31,030.89 : 42,822.50 = 16,883.97 : x
2. Step 2: Convert to fraction form
   31,030.89/42,822.50 = 16,883.97/x
3. Step 3: Cross multiply
   31,030.89x = 42,822.50 × 16,883.97
4. Step 4: Simplify right side
   31,030.89x = 723,013,805.33
5. Step 5: Solve for x
   x = 723,013,805.33/31,030.89
6. Step 6: Final answer
   x = 23,299.81