Finding the Fourth Proportional to 31,029.39, 42,821.63 and 16,882.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,029.39 : 42,821.63 = 16,882.77 : x
2. Step 2: Convert to fraction form
   31,029.39/42,821.63 = 16,882.77/x
3. Step 3: Cross multiply
   31,029.39x = 42,821.63 × 16,882.77
4. Step 4: Simplify right side
   31,029.39x = 722,947,645.90
5. Step 5: Solve for x
   x = 722,947,645.90/31,029.39
6. Step 6: Final answer
   x = 23,298.80