Finding the Fourth Proportional to 30,934.72, 42,674.88 and 18,350.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,934.72 : 42,674.88 = 18,350.56 : x
2. Step 2: Convert to fraction form
   30,934.72/42,674.88 = 18,350.56/x
3. Step 3: Cross multiply
   30,934.72x = 42,674.88 × 18,350.56
4. Step 4: Simplify right side
   30,934.72x = 783,107,945.93
5. Step 5: Solve for x
   x = 783,107,945.93/30,934.72
6. Step 6: Final answer
   x = 25,314.85