Finding the Fourth Proportional to 12,262.96, 18,379.86 and 4,462.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,262.96 : 18,379.86 = 4,462.72 : x
2. Step 2: Convert to fraction form
   12,262.96/18,379.86 = 4,462.72/x
3. Step 3: Cross multiply
   12,262.96x = 18,379.86 × 4,462.72
4. Step 4: Simplify right side
   12,262.96x = 82,024,168.82
5. Step 5: Solve for x
   x = 82,024,168.82/12,262.96
6. Step 6: Final answer
   x = 6,688.77