Finding the Fourth Proportional to 30,862.81, 42,590.50 and 17,433.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,862.81 : 42,590.50 = 17,433.42 : x
2. Step 2: Convert to fraction form
   30,862.81/42,590.50 = 17,433.42/x
3. Step 3: Cross multiply
   30,862.81x = 42,590.50 × 17,433.42
4. Step 4: Simplify right side
   30,862.81x = 742,498,074.51
5. Step 5: Solve for x
   x = 742,498,074.51/30,862.81
6. Step 6: Final answer
   x = 24,058.02