Finding the Fourth Proportional to 12,696.45, 19,044.62 and 3,931.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,696.45 : 19,044.62 = 3,931.34 : x
2. Step 2: Convert to fraction form
   12,696.45/19,044.62 = 3,931.34/x
3. Step 3: Cross multiply
   12,696.45x = 19,044.62 × 3,931.34
4. Step 4: Simplify right side
   12,696.45x = 74,870,776.25
5. Step 5: Solve for x
   x = 74,870,776.25/12,696.45
6. Step 6: Final answer
   x = 5,896.99