Finding the Fourth Proportional to 31,076.28, 42,883.77 and 17,645.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076.28 : 42,883.77 = 17,645.76 : x
2. Step 2: Convert to fraction form
   31,076.28/42,883.77 = 17,645.76/x
3. Step 3: Cross multiply
   31,076.28x = 42,883.77 × 17,645.76
4. Step 4: Simplify right side
   31,076.28x = 756,716,713.32
5. Step 5: Solve for x
   x = 756,716,713.32/31,076.28
6. Step 6: Final answer
   x = 24,350.30