Finding the Fourth Proportional to 30,790.09, 42,490.15 and 17,361.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790.09 : 42,490.15 = 17,361.46 : x
2. Step 2: Convert to fraction form
   30,790.09/42,490.15 = 17,361.46/x
3. Step 3: Cross multiply
   30,790.09x = 42,490.15 × 17,361.46
4. Step 4: Simplify right side
   30,790.09x = 737,690,907.98
5. Step 5: Solve for x
   x = 737,690,907.98/30,790.09
6. Step 6: Final answer
   x = 23,958.71