Finding the Fourth Proportional to 12,725.31, 19,090.73 and 3,960.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,725.31 : 19,090.73 = 3,960.93 : x
2. Step 2: Convert to fraction form
   12,725.31/19,090.73 = 3,960.93/x
3. Step 3: Cross multiply
   12,725.31x = 19,090.73 × 3,960.93
4. Step 4: Simplify right side
   12,725.31x = 75,617,045.18
5. Step 5: Solve for x
   x = 75,617,045.18/12,725.31
6. Step 6: Final answer
   x = 5,942.26