Finding the Fourth Proportional to 31,826.02, 43,919.89 and 17,680.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,826.02 : 43,919.89 = 17,680.18 : x
2. Step 2: Convert to fraction form
   31,826.02/43,919.89 = 17,680.18/x
3. Step 3: Cross multiply
   31,826.02x = 43,919.89 × 17,680.18
4. Step 4: Simplify right side
   31,826.02x = 776,511,560.78
5. Step 5: Solve for x
   x = 776,511,560.78/31,826.02
6. Step 6: Final answer
   x = 24,398.64