Finding the Fourth Proportional to 12,335.06, 17,007.49 and 8,561.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,335.06 : 17,007.49 = 8,561.42 : x
2. Step 2: Convert to fraction form
   12,335.06/17,007.49 = 8,561.42/x
3. Step 3: Cross multiply
   12,335.06x = 17,007.49 × 8,561.42
4. Step 4: Simplify right side
   12,335.06x = 145,608,265.04
5. Step 5: Solve for x
   x = 145,608,265.04/12,335.06
6. Step 6: Final answer
   x = 11,804.42