Finding the Fourth Proportional to 8,362.94, 12,545.82 and 3,978.95

Step by Step Solution

1. Step 1: Write the proportion equation
   8,362.94 : 12,545.82 = 3,978.95 : x
2. Step 2: Convert to fraction form
   8,362.94/12,545.82 = 3,978.95/x
3. Step 3: Cross multiply
   8,362.94x = 12,545.82 × 3,978.95
4. Step 4: Simplify right side
   8,362.94x = 49,919,127.76
5. Step 5: Solve for x
   x = 49,919,127.76/8,362.94
6. Step 6: Final answer
   x = 5,969.09