Finding the Fourth Proportional to 9,363.77, 14,040.94 and 3,121.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,363.77 : 14,040.94 = 3,121.59 : x
2. Step 2: Convert to fraction form
   9,363.77/14,040.94 = 3,121.59/x
3. Step 3: Cross multiply
   9,363.77x = 14,040.94 × 3,121.59
4. Step 4: Simplify right side
   9,363.77x = 43,830,057.89
5. Step 5: Solve for x
   x = 43,830,057.89/9,363.77
6. Step 6: Final answer
   x = 4,680.81