Finding the Fourth Proportional to 12,724.04, 17,558.85 and 7,058.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.04 : 17,558.85 = 7,058.76 : x
2. Step 2: Convert to fraction form
   12,724.04/17,558.85 = 7,058.76/x
3. Step 3: Cross multiply
   12,724.04x = 17,558.85 × 7,058.76
4. Step 4: Simplify right side
   12,724.04x = 123,943,767.42
5. Step 5: Solve for x
   x = 123,943,767.42/12,724.04
6. Step 6: Final answer
   x = 9,740.91