Finding the Fourth Proportional to 30,870.80, 42,608.68 and 17,449.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,870.80 : 42,608.68 = 17,449.82 : x
2. Step 2: Convert to fraction form
   30,870.80/42,608.68 = 17,449.82/x
3. Step 3: Cross multiply
   30,870.80x = 42,608.68 × 17,449.82
4. Step 4: Simplify right side
   30,870.80x = 743,513,796.44
5. Step 5: Solve for x
   x = 743,513,796.44/30,870.80
6. Step 6: Final answer
   x = 24,084.69