Finding the Fourth Proportional to 31,058.24, 42,858.18 and 17,629.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,058.24 : 42,858.18 = 17,629.78 : x
2. Step 2: Convert to fraction form
   31,058.24/42,858.18 = 17,629.78/x
3. Step 3: Cross multiply
   31,058.24x = 42,858.18 × 17,629.78
4. Step 4: Simplify right side
   31,058.24x = 755,580,284.60
5. Step 5: Solve for x
   x = 755,580,284.60/31,058.24
6. Step 6: Final answer
   x = 24,327.85