Finding the Fourth Proportional to 12,953.72, 17,882.94 and 9,179.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,953.72 : 17,882.94 = 9,179.96 : x
2. Step 2: Convert to fraction form
   12,953.72/17,882.94 = 9,179.96/x
3. Step 3: Cross multiply
   12,953.72x = 17,882.94 × 9,179.96
4. Step 4: Simplify right side
   12,953.72x = 164,164,673.88
5. Step 5: Solve for x
   x = 164,164,673.88/12,953.72
6. Step 6: Final answer
   x = 12,673.17