Finding the Fourth Proportional to 30,705.35, 42,370.35 and 17,276.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,705.35 : 42,370.35 = 17,276.31 : x
2. Step 2: Convert to fraction form
   30,705.35/42,370.35 = 17,276.31/x
3. Step 3: Cross multiply
   30,705.35x = 42,370.35 × 17,276.31
4. Step 4: Simplify right side
   30,705.35x = 732,003,301.41
5. Step 5: Solve for x
   x = 732,003,301.41/30,705.35
6. Step 6: Final answer
   x = 23,839.61