Finding the Fourth Proportional to 12,601.56, 17,388.16 and 7,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,601.56 : 17,388.16 = 7,012.56 : x
2. Step 2: Convert to fraction form
   12,601.56/17,388.16 = 7,012.56/x
3. Step 3: Cross multiply
   12,601.56x = 17,388.16 × 7,012.56
4. Step 4: Simplify right side
   12,601.56x = 121,935,515.29
5. Step 5: Solve for x
   x = 121,935,515.29/12,601.56
6. Step 6: Final answer
   x = 9,676.22