Finding the Fourth Proportional to 30,826.87, 42,540.33 and 17,398.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,826.87 : 42,540.33 = 17,398.69 : x
2. Step 2: Convert to fraction form
   30,826.87/42,540.33 = 17,398.69/x
3. Step 3: Cross multiply
   30,826.87x = 42,540.33 × 17,398.69
4. Step 4: Simplify right side
   30,826.87x = 740,146,014.17
5. Step 5: Solve for x
   x = 740,146,014.17/30,826.87
6. Step 6: Final answer
   x = 24,009.77