Finding the Fourth Proportional to 31,821, 43,912.98 and 17,675.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,821 : 43,912.98 = 17,675.16 : x
2. Step 2: Convert to fraction form
   31,821/43,912.98 = 17,675.16/x
3. Step 3: Cross multiply
   31,821x = 43,912.98 × 17,675.16
4. Step 4: Simplify right side
   31,821x = 776,168,947.58
5. Step 5: Solve for x
   x = 776,168,947.58/31,821
6. Step 6: Final answer
   x = 24,391.72