Finding the Fourth Proportional to 31,789, 43,868.94 and 17,643.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789 : 43,868.94 = 17,643.88 : x
2. Step 2: Convert to fraction form
   31,789/43,868.94 = 17,643.88/x
3. Step 3: Cross multiply
   31,789x = 43,868.94 × 17,643.88
4. Step 4: Simplify right side
   31,789x = 774,018,313.09
5. Step 5: Solve for x
   x = 774,018,313.09/31,789
6. Step 6: Final answer
   x = 24,348.62