Finding the Fourth Proportional to 31,178.39, 43,024.57 and 17,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,178.39 : 43,024.57 = 17,028.50 : x
2. Step 2: Convert to fraction form
   31,178.39/43,024.57 = 17,028.50/x
3. Step 3: Cross multiply
   31,178.39x = 43,024.57 × 17,028.50
4. Step 4: Simplify right side
   31,178.39x = 732,643,632.55
5. Step 5: Solve for x
   x = 732,643,632.55/31,178.39
6. Step 6: Final answer
   x = 23,498.45