Finding the Fourth Proportional to 31,218.77, 43,083.06 and 17,789.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,218.77 : 43,083.06 = 17,789.68 : x
2. Step 2: Convert to fraction form
   31,218.77/43,083.06 = 17,789.68/x
3. Step 3: Cross multiply
   31,218.77x = 43,083.06 × 17,789.68
4. Step 4: Simplify right side
   31,218.77x = 766,433,745.72
5. Step 5: Solve for x
   x = 766,433,745.72/31,218.77
6. Step 6: Final answer
   x = 24,550.42