Finding the Fourth Proportional to 12,967.08, 17,893.56 and 7,660.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.08 : 17,893.56 = 7,660.89 : x
2. Step 2: Convert to fraction form
   12,967.08/17,893.56 = 7,660.89/x
3. Step 3: Cross multiply
   12,967.08x = 17,893.56 × 7,660.89
4. Step 4: Simplify right side
   12,967.08x = 137,080,594.87
5. Step 5: Solve for x
   x = 137,080,594.87/12,967.08
6. Step 6: Final answer
   x = 10,571.43