Finding the Fourth Proportional to 30,723.94, 42,405.69 and 18,150.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,723.94 : 42,405.69 = 18,150.58 : x
2. Step 2: Convert to fraction form
   30,723.94/42,405.69 = 18,150.58/x
3. Step 3: Cross multiply
   30,723.94x = 42,405.69 × 18,150.58
4. Step 4: Simplify right side
   30,723.94x = 769,687,868.80
5. Step 5: Solve for x
   x = 769,687,868.80/30,723.94
6. Step 6: Final answer
   x = 25,051.73