Finding the Fourth Proportional to 12,387.04, 17,103.48 and 7,613.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,387.04 : 17,103.48 = 7,613.57 : x
2. Step 2: Convert to fraction form
   12,387.04/17,103.48 = 7,613.57/x
3. Step 3: Cross multiply
   12,387.04x = 17,103.48 × 7,613.57
4. Step 4: Simplify right side
   12,387.04x = 130,218,556.43
5. Step 5: Solve for x
   x = 130,218,556.43/12,387.04
6. Step 6: Final answer
   x = 10,512.49