Finding the Fourth Proportional to 10,977.98, 16,475.54 and 4,408.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,977.98 : 16,475.54 = 4,408.47 : x
2. Step 2: Convert to fraction form
   10,977.98/16,475.54 = 4,408.47/x
3. Step 3: Cross multiply
   10,977.98x = 16,475.54 × 4,408.47
4. Step 4: Simplify right side
   10,977.98x = 72,631,901.78
5. Step 5: Solve for x
   x = 72,631,901.78/10,977.98
6. Step 6: Final answer
   x = 6,616.15