Finding the Fourth Proportional to 12,150.72, 16,768.30 and 6,699.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.72 : 16,768.30 = 6,699.96 : x
2. Step 2: Convert to fraction form
   12,150.72/16,768.30 = 6,699.96/x
3. Step 3: Cross multiply
   12,150.72x = 16,768.30 × 6,699.96
4. Step 4: Simplify right side
   12,150.72x = 112,346,939.27
5. Step 5: Solve for x
   x = 112,346,939.27/12,150.72
6. Step 6: Final answer
   x = 9,246.11