Finding the Fourth Proportional to 30,826.02, 42,540.75 and 18,250.77

Step by Step Solution

1. Step 1: Write the proportion equation
   30,826.02 : 42,540.75 = 18,250.77 : x
2. Step 2: Convert to fraction form
   30,826.02/42,540.75 = 18,250.77/x
3. Step 3: Cross multiply
   30,826.02x = 42,540.75 × 18,250.77
4. Step 4: Simplify right side
   30,826.02x = 776,401,443.88
5. Step 5: Solve for x
   x = 776,401,443.88/30,826.02
6. Step 6: Final answer
   x = 25,186.56