Finding the Fourth Proportional to 5,978.07, 8,248.23 and 3,619.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.07 : 8,248.23 = 3,619.76 : x
2. Step 2: Convert to fraction form
   5,978.07/8,248.23 = 3,619.76/x
3. Step 3: Cross multiply
   5,978.07x = 8,248.23 × 3,619.76
4. Step 4: Simplify right side
   5,978.07x = 29,856,571.78
5. Step 5: Solve for x
   x = 29,856,571.78/5,978.07
6. Step 6: Final answer
   x = 4,994.35