Finding the Fourth Proportional to 16,900.88, 25,340.52 and 8,118.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,900.88 : 25,340.52 = 8,118.32 : x
2. Step 2: Convert to fraction form
   16,900.88/25,340.52 = 8,118.32/x
3. Step 3: Cross multiply
   16,900.88x = 25,340.52 × 8,118.32
4. Step 4: Simplify right side
   16,900.88x = 205,722,450.33
5. Step 5: Solve for x
   x = 205,722,450.33/16,900.88
6. Step 6: Final answer
   x = 12,172.29