Finding the Fourth Proportional to 12,723.30, 17,558.26 and 7,058.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.30 : 17,558.26 = 7,058.42 : x
2. Step 2: Convert to fraction form
   12,723.30/17,558.26 = 7,058.42/x
3. Step 3: Cross multiply
   12,723.30x = 17,558.26 × 7,058.42
4. Step 4: Simplify right side
   12,723.30x = 123,933,599.80
5. Step 5: Solve for x
   x = 123,933,599.80/12,723.30
6. Step 6: Final answer
   x = 9,740.68