Finding the Fourth Proportional to 12,959.29, 17,867.46 and 8,475.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.29 : 17,867.46 = 8,475.94 : x
2. Step 2: Convert to fraction form
   12,959.29/17,867.46 = 8,475.94/x
3. Step 3: Cross multiply
   12,959.29x = 17,867.46 × 8,475.94
4. Step 4: Simplify right side
   12,959.29x = 151,443,518.91
5. Step 5: Solve for x
   x = 151,443,518.91/12,959.29
6. Step 6: Final answer
   x = 11,686.10