Finding the Fourth Proportional to 12,314.49, 18,467.81 and 3,992.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,314.49 : 18,467.81 = 3,992.55 : x
2. Step 2: Convert to fraction form
   12,314.49/18,467.81 = 3,992.55/x
3. Step 3: Cross multiply
   12,314.49x = 18,467.81 × 3,992.55
4. Step 4: Simplify right side
   12,314.49x = 73,733,654.82
5. Step 5: Solve for x
   x = 73,733,654.82/12,314.49
6. Step 6: Final answer
   x = 5,987.55