Finding the Fourth Proportional to 30,826.11, 42,540.23 and 18,076.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,826.11 : 42,540.23 = 18,076.69 : x
2. Step 2: Convert to fraction form
   30,826.11/42,540.23 = 18,076.69/x
3. Step 3: Cross multiply
   30,826.11x = 42,540.23 × 18,076.69
4. Step 4: Simplify right side
   30,826.11x = 768,986,641.15
5. Step 5: Solve for x
   x = 768,986,641.15/30,826.11
6. Step 6: Final answer
   x = 24,945.95