Finding the Fourth Proportional to 10,978.25, 16,476.69 and 4,408.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.25 : 16,476.69 = 4,408.88 : x
2. Step 2: Convert to fraction form
   10,978.25/16,476.69 = 4,408.88/x
3. Step 3: Cross multiply
   10,978.25x = 16,476.69 × 4,408.88
4. Step 4: Simplify right side
   10,978.25x = 72,643,749.01
5. Step 5: Solve for x
   x = 72,643,749.01/10,978.25
6. Step 6: Final answer
   x = 6,617.06