Finding the Fourth Proportional to 30,971.94, 42,742.06 and 17,543

Step by Step Solution

1. Step 1: Write the proportion equation
   30,971.94 : 42,742.06 = 17,543 : x
2. Step 2: Convert to fraction form
   30,971.94/42,742.06 = 17,543/x
3. Step 3: Cross multiply
   30,971.94x = 42,742.06 × 17,543
4. Step 4: Simplify right side
   30,971.94x = 749,823,958.58
5. Step 5: Solve for x
   x = 749,823,958.58/30,971.94
6. Step 6: Final answer
   x = 24,209.78