Finding the Fourth Proportional to 12,723.24, 17,557.18 and 7,058.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.24 : 17,557.18 = 7,058.22 : x
2. Step 2: Convert to fraction form
   12,723.24/17,557.18 = 7,058.22/x
3. Step 3: Cross multiply
   12,723.24x = 17,557.18 × 7,058.22
4. Step 4: Simplify right side
   12,723.24x = 123,922,439.02
5. Step 5: Solve for x
   x = 123,922,439.02/12,723.24
6. Step 6: Final answer
   x = 9,739.85