Finding the Fourth Proportional to 30,708.48, 42,377.42 and 17,279.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,708.48 : 42,377.42 = 17,279.46 : x
2. Step 2: Convert to fraction form
   30,708.48/42,377.42 = 17,279.46/x
3. Step 3: Cross multiply
   30,708.48x = 42,377.42 × 17,279.46
4. Step 4: Simplify right side
   30,708.48x = 732,258,847.40
5. Step 5: Solve for x
   x = 732,258,847.40/30,708.48
6. Step 6: Final answer
   x = 23,845.50