Finding the Fourth Proportional to 12,606.23, 17,405.89 and 8,132.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.23 : 17,405.89 = 8,132.60 : x
2. Step 2: Convert to fraction form
   12,606.23/17,405.89 = 8,132.60/x
3. Step 3: Cross multiply
   12,606.23x = 17,405.89 × 8,132.60
4. Step 4: Simplify right side
   12,606.23x = 141,555,164.20
5. Step 5: Solve for x
   x = 141,555,164.20/12,606.23
6. Step 6: Final answer
   x = 11,228.98