Finding the Fourth Proportional to 8,140.38, 12,210.54 and 3,401.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,140.38 : 12,210.54 = 3,401.88 : x
2. Step 2: Convert to fraction form
   8,140.38/12,210.54 = 3,401.88/x
3. Step 3: Cross multiply
   8,140.38x = 12,210.54 × 3,401.88
4. Step 4: Simplify right side
   8,140.38x = 41,538,791.82
5. Step 5: Solve for x
   x = 41,538,791.82/8,140.38
6. Step 6: Final answer
   x = 5,102.81