Finding the Fourth Proportional to 12,606.60, 17,359.58 and 12,326.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.60 : 17,359.58 = 12,326.89 : x
2. Step 2: Convert to fraction form
   12,606.60/17,359.58 = 12,326.89/x
3. Step 3: Cross multiply
   12,606.60x = 17,359.58 × 12,326.89
4. Step 4: Simplify right side
   12,606.60x = 213,989,620.52
5. Step 5: Solve for x
   x = 213,989,620.52/12,606.60
6. Step 6: Final answer
   x = 16,974.41