Finding the Fourth Proportional to 12,506.91, 17,265.81 and 9,667.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,506.91 : 17,265.81 = 9,667.88 : x
2. Step 2: Convert to fraction form
   12,506.91/17,265.81 = 9,667.88/x
3. Step 3: Cross multiply
   12,506.91x = 17,265.81 × 9,667.88
4. Step 4: Simplify right side
   12,506.91x = 166,923,779.18
5. Step 5: Solve for x
   x = 166,923,779.18/12,506.91
6. Step 6: Final answer
   x = 13,346.52