Finding the Fourth Proportional to 12,723.96, 17,558.82 and 7,058.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.96 : 17,558.82 = 7,058.68 : x
2. Step 2: Convert to fraction form
   12,723.96/17,558.82 = 7,058.68/x
3. Step 3: Cross multiply
   12,723.96x = 17,558.82 × 7,058.68
4. Step 4: Simplify right side
   12,723.96x = 123,942,091.56
5. Step 5: Solve for x
   x = 123,942,091.56/12,723.96
6. Step 6: Final answer
   x = 9,740.84