Finding the Fourth Proportional to 8,495.38, 11,719.55 and 5,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,495.38 : 11,719.55 = 5,978.88 : x
2. Step 2: Convert to fraction form
   8,495.38/11,719.55 = 5,978.88/x
3. Step 3: Cross multiply
   8,495.38x = 11,719.55 × 5,978.88
4. Step 4: Simplify right side
   8,495.38x = 70,069,847.49
5. Step 5: Solve for x
   x = 70,069,847.49/8,495.38
6. Step 6: Final answer
   x = 8,248.00