Finding the Fourth Proportional to 30,726.74, 42,411.40 and 17,982.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726.74 : 42,411.40 = 17,982.61 : x
2. Step 2: Convert to fraction form
   30,726.74/42,411.40 = 17,982.61/x
3. Step 3: Cross multiply
   30,726.74x = 42,411.40 × 17,982.61
4. Step 4: Simplify right side
   30,726.74x = 762,667,514.77
5. Step 5: Solve for x
   x = 762,667,514.77/30,726.74
6. Step 6: Final answer
   x = 24,820.97