Finding the Fourth Proportional to 12,697.63, 17,518.67 and 8,224.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.63 : 17,518.67 = 8,224.81 : x
2. Step 2: Convert to fraction form
   12,697.63/17,518.67 = 8,224.81/x
3. Step 3: Cross multiply
   12,697.63x = 17,518.67 × 8,224.81
4. Step 4: Simplify right side
   12,697.63x = 144,087,732.20
5. Step 5: Solve for x
   x = 144,087,732.20/12,697.63
6. Step 6: Final answer
   x = 11,347.61