Finding the Fourth Proportional to 12,697.72, 17,527.26 and 8,719

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.72 : 17,527.26 = 8,719 : x
2. Step 2: Convert to fraction form
   12,697.72/17,527.26 = 8,719/x
3. Step 3: Cross multiply
   12,697.72x = 17,527.26 × 8,719
4. Step 4: Simplify right side
   12,697.72x = 152,820,179.94
5. Step 5: Solve for x
   x = 152,820,179.94/12,697.72
6. Step 6: Final answer
   x = 12,035.25