Finding the Fourth Proportional to 16,870.05, 25,274.70 and 8,085.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,870.05 : 25,274.70 = 8,085.60 : x
2. Step 2: Convert to fraction form
   16,870.05/25,274.70 = 8,085.60/x
3. Step 3: Cross multiply
   16,870.05x = 25,274.70 × 8,085.60
4. Step 4: Simplify right side
   16,870.05x = 204,361,114.32
5. Step 5: Solve for x
   x = 204,361,114.32/16,870.05
6. Step 6: Final answer
   x = 12,113.84