Finding the Fourth Proportional to 10,978.32, 16,464.55 and 3,080.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.32 : 16,464.55 = 3,080.37 : x
2. Step 2: Convert to fraction form
   10,978.32/16,464.55 = 3,080.37/x
3. Step 3: Cross multiply
   10,978.32x = 16,464.55 × 3,080.37
4. Step 4: Simplify right side
   10,978.32x = 50,716,905.88
5. Step 5: Solve for x
   x = 50,716,905.88/10,978.32
6. Step 6: Final answer
   x = 4,619.73