Finding the Fourth Proportional to 12,973.23, 17,896.14 and 7,939.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973.23 : 17,896.14 = 7,939.89 : x
2. Step 2: Convert to fraction form
   12,973.23/17,896.14 = 7,939.89/x
3. Step 3: Cross multiply
   12,973.23x = 17,896.14 × 7,939.89
4. Step 4: Simplify right side
   12,973.23x = 142,093,383.02
5. Step 5: Solve for x
   x = 142,093,383.02/12,973.23
6. Step 6: Final answer
   x = 10,952.81