Finding the Fourth Proportional to 12,959.82, 19,429.74 and 4,192.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.82 : 19,429.74 = 4,192.38 : x
2. Step 2: Convert to fraction form
   12,959.82/19,429.74 = 4,192.38/x
3. Step 3: Cross multiply
   12,959.82x = 19,429.74 × 4,192.38
4. Step 4: Simplify right side
   12,959.82x = 81,456,853.38
5. Step 5: Solve for x
   x = 81,456,853.38/12,959.82
6. Step 6: Final answer
   x = 6,285.34