Finding the Fourth Proportional to 31,768.61, 43,839.56 and 17,622.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,768.61 : 43,839.56 = 17,622.77 : x
2. Step 2: Convert to fraction form
   31,768.61/43,839.56 = 17,622.77/x
3. Step 3: Cross multiply
   31,768.61x = 43,839.56 × 17,622.77
4. Step 4: Simplify right side
   31,768.61x = 772,574,175.47
5. Step 5: Solve for x
   x = 772,574,175.47/31,768.61
6. Step 6: Final answer
   x = 24,318.79