Finding the Fourth Proportional to 5,363.66, 8,034.42 and 3,978.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,363.66 : 8,034.42 = 3,978.56 : x
2. Step 2: Convert to fraction form
   5,363.66/8,034.42 = 3,978.56/x
3. Step 3: Cross multiply
   5,363.66x = 8,034.42 × 3,978.56
4. Step 4: Simplify right side
   5,363.66x = 31,965,422.04
5. Step 5: Solve for x
   x = 31,965,422.04/5,363.66
6. Step 6: Final answer
   x = 5,959.63