Finding the Fourth Proportional to 12,878, 17,771.72 and 7,573.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,878 : 17,771.72 = 7,573.04 : x
2. Step 2: Convert to fraction form
   12,878/17,771.72 = 7,573.04/x
3. Step 3: Cross multiply
   12,878x = 17,771.72 × 7,573.04
4. Step 4: Simplify right side
   12,878x = 134,585,946.43
5. Step 5: Solve for x
   x = 134,585,946.43/12,878
6. Step 6: Final answer
   x = 10,450.84