Finding the Fourth Proportional to 30,536.42, 42,142.37 and 17,107.43

Step by Step Solution

1. Step 1: Write the proportion equation
   30,536.42 : 42,142.37 = 17,107.43 : x
2. Step 2: Convert to fraction form
   30,536.42/42,142.37 = 17,107.43/x
3. Step 3: Cross multiply
   30,536.42x = 42,142.37 × 17,107.43
4. Step 4: Simplify right side
   30,536.42x = 720,947,348.56
5. Step 5: Solve for x
   x = 720,947,348.56/30,536.42
6. Step 6: Final answer
   x = 23,609.43