Finding the Fourth Proportional to 31,077.03, 42,885.92 and 16,929.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,077.03 : 42,885.92 = 16,929.57 : x
2. Step 2: Convert to fraction form
   31,077.03/42,885.92 = 16,929.57/x
3. Step 3: Cross multiply
   31,077.03x = 42,885.92 × 16,929.57
4. Step 4: Simplify right side
   31,077.03x = 726,040,100.01
5. Step 5: Solve for x
   x = 726,040,100.01/31,077.03
6. Step 6: Final answer
   x = 23,362.60