Finding the Fourth Proportional to 16,071.99, 24,087.94 and 12,388.11

Step by Step Solution

1. Step 1: Write the proportion equation
   16,071.99 : 24,087.94 = 12,388.11 : x
2. Step 2: Convert to fraction form
   16,071.99/24,087.94 = 12,388.11/x
3. Step 3: Cross multiply
   16,071.99x = 24,087.94 × 12,388.11
4. Step 4: Simplify right side
   16,071.99x = 298,404,019.42
5. Step 5: Solve for x
   x = 298,404,019.42/16,071.99
6. Step 6: Final answer
   x = 18,566.71