Finding the Fourth Proportional to 10,992.10, 16,477.35 and 5,446.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.10 : 16,477.35 = 5,446.30 : x
2. Step 2: Convert to fraction form
   10,992.10/16,477.35 = 5,446.30/x
3. Step 3: Cross multiply
   10,992.10x = 16,477.35 × 5,446.30
4. Step 4: Simplify right side
   10,992.10x = 89,740,591.31
5. Step 5: Solve for x
   x = 89,740,591.31/10,992.10
6. Step 6: Final answer
   x = 8,164.10