Finding the Fourth Proportional to 16,885.86, 25,290.72 and 8,127.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.86 : 25,290.72 = 8,127.34 : x
2. Step 2: Convert to fraction form
   16,885.86/25,290.72 = 8,127.34/x
3. Step 3: Cross multiply
   16,885.86x = 25,290.72 × 8,127.34
4. Step 4: Simplify right side
   16,885.86x = 205,546,280.28
5. Step 5: Solve for x
   x = 205,546,280.28/16,885.86
6. Step 6: Final answer
   x = 12,172.69