Finding the Fourth Proportional to 31,023.98, 42,813.06 and 16,876.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,023.98 : 42,813.06 = 16,876.79 : x
2. Step 2: Convert to fraction form
   31,023.98/42,813.06 = 16,876.79/x
3. Step 3: Cross multiply
   31,023.98x = 42,813.06 × 16,876.79
4. Step 4: Simplify right side
   31,023.98x = 722,547,022.88
5. Step 5: Solve for x
   x = 722,547,022.88/31,023.98
6. Step 6: Final answer
   x = 23,289.95