Finding the Fourth Proportional to 30,971.39, 42,662.36 and 24,986.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,971.39 : 42,662.36 = 24,986.30 : x
2. Step 2: Convert to fraction form
   30,971.39/42,662.36 = 24,986.30/x
3. Step 3: Cross multiply
   30,971.39x = 42,662.36 × 24,986.30
4. Step 4: Simplify right side
   30,971.39x = 1,065,974,374.82
5. Step 5: Solve for x
   x = 1,065,974,374.82/30,971.39
6. Step 6: Final answer
   x = 34,418.04