Finding the Fourth Proportional to 12,760.94, 17,613.58 and 8,284.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.94 : 17,613.58 = 8,284.45 : x
2. Step 2: Convert to fraction form
   12,760.94/17,613.58 = 8,284.45/x
3. Step 3: Cross multiply
   12,760.94x = 17,613.58 × 8,284.45
4. Step 4: Simplify right side
   12,760.94x = 145,918,822.83
5. Step 5: Solve for x
   x = 145,918,822.83/12,760.94
6. Step 6: Final answer
   x = 11,434.80