Finding the Fourth Proportional to 10,978.89, 16,465.38 and 3,080.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.89 : 16,465.38 = 3,080.94 : x
2. Step 2: Convert to fraction form
   10,978.89/16,465.38 = 3,080.94/x
3. Step 3: Cross multiply
   10,978.89x = 16,465.38 × 3,080.94
4. Step 4: Simplify right side
   10,978.89x = 50,728,847.86
5. Step 5: Solve for x
   x = 50,728,847.86/10,978.89
6. Step 6: Final answer
   x = 4,620.58