Finding the Fourth Proportional to 12,759, 17,624.15 and 8,773.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,759 : 17,624.15 = 8,773.19 : x
2. Step 2: Convert to fraction form
   12,759/17,624.15 = 8,773.19/x
3. Step 3: Cross multiply
   12,759x = 17,624.15 × 8,773.19
4. Step 4: Simplify right side
   12,759x = 154,619,884.55
5. Step 5: Solve for x
   x = 154,619,884.55/12,759
6. Step 6: Final answer
   x = 12,118.50