Finding the Fourth Proportional to 30,643.56, 42,298.83 and 18,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,643.56 : 42,298.83 = 18,067.50 : x
2. Step 2: Convert to fraction form
   30,643.56/42,298.83 = 18,067.50/x
3. Step 3: Cross multiply
   30,643.56x = 42,298.83 × 18,067.50
4. Step 4: Simplify right side
   30,643.56x = 764,234,111.03
5. Step 5: Solve for x
   x = 764,234,111.03/30,643.56
6. Step 6: Final answer
   x = 24,939.47