Finding the Fourth Proportional to 12,942.37, 19,399.72 and 6,696.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942.37 : 19,399.72 = 6,696.10 : x
2. Step 2: Convert to fraction form
   12,942.37/19,399.72 = 6,696.10/x
3. Step 3: Cross multiply
   12,942.37x = 19,399.72 × 6,696.10
4. Step 4: Simplify right side
   12,942.37x = 129,902,465.09
5. Step 5: Solve for x
   x = 129,902,465.09/12,942.37
6. Step 6: Final answer
   x = 10,036.99