Finding the Fourth Proportional to 30,870.58, 42,598.87 and 17,443

Step by Step Solution

1. Step 1: Write the proportion equation
   30,870.58 : 42,598.87 = 17,443 : x
2. Step 2: Convert to fraction form
   30,870.58/42,598.87 = 17,443/x
3. Step 3: Cross multiply
   30,870.58x = 42,598.87 × 17,443
4. Step 4: Simplify right side
   30,870.58x = 743,052,089.41
5. Step 5: Solve for x
   x = 743,052,089.41/30,870.58
6. Step 6: Final answer
   x = 24,069.91