Finding the Fourth Proportional to 12,326.22, 17,009.33 and 7,783.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326.22 : 17,009.33 = 7,783.61 : x
2. Step 2: Convert to fraction form
   12,326.22/17,009.33 = 7,783.61/x
3. Step 3: Cross multiply
   12,326.22x = 17,009.33 × 7,783.61
4. Step 4: Simplify right side
   12,326.22x = 132,393,867.12
5. Step 5: Solve for x
   x = 132,393,867.12/12,326.22
6. Step 6: Final answer
   x = 10,740.83