Finding the Fourth Proportional to 31,058.83, 42,859.75 and 16,911.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,058.83 : 42,859.75 = 16,911.63 : x
2. Step 2: Convert to fraction form
   31,058.83/42,859.75 = 16,911.63/x
3. Step 3: Cross multiply
   31,058.83x = 42,859.75 × 16,911.63
4. Step 4: Simplify right side
   31,058.83x = 724,828,233.89
5. Step 5: Solve for x
   x = 724,828,233.89/31,058.83
6. Step 6: Final answer
   x = 23,337.27