Finding the Fourth Proportional to 12,600.72, 17,388.36 and 7,012.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,600.72 : 17,388.36 = 7,012.08 : x
2. Step 2: Convert to fraction form
   12,600.72/17,388.36 = 7,012.08/x
3. Step 3: Cross multiply
   12,600.72x = 17,388.36 × 7,012.08
4. Step 4: Simplify right side
   12,600.72x = 121,928,571.39
5. Step 5: Solve for x
   x = 121,928,571.39/12,600.72
6. Step 6: Final answer
   x = 9,676.32