Finding the Fourth Proportional to 12,667.52, 17,464.78 and 8,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.52 : 17,464.78 = 8,681.50 : x
2. Step 2: Convert to fraction form
   12,667.52/17,464.78 = 8,681.50/x
3. Step 3: Cross multiply
   12,667.52x = 17,464.78 × 8,681.50
4. Step 4: Simplify right side
   12,667.52x = 151,620,487.57
5. Step 5: Solve for x
   x = 151,620,487.57/12,667.52
6. Step 6: Final answer
   x = 11,969.23