Finding the Fourth Proportional to 16,978,671, 25,451,996.58 and 8,450,945.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978,671 : 25,451,996.58 = 8,450,945.64 : x
2. Step 2: Convert to fraction form
   16,978,671/25,451,996.58 = 8,450,945.64/x
3. Step 3: Cross multiply
   16,978,671x = 25,451,996.58 × 8,450,945.64
4. Step 4: Simplify right side
   16,978,671x = 215,093,439,527,045.91
5. Step 5: Solve for x
   x = 215,093,439,527,045.91/16,978,671
6. Step 6: Final answer
   x = 12,668,449.70