Finding the Fourth Proportional to 30,574.86, 42,211.71 and 19,982.22

Step by Step Solution

1. Step 1: Write the proportion equation
   30,574.86 : 42,211.71 = 19,982.22 : x
2. Step 2: Convert to fraction form
   30,574.86/42,211.71 = 19,982.22/x
3. Step 3: Cross multiply
   30,574.86x = 42,211.71 × 19,982.22
4. Step 4: Simplify right side
   30,574.86x = 843,483,675.80
5. Step 5: Solve for x
   x = 843,483,675.80/30,574.86
6. Step 6: Final answer
   x = 27,587.49