Finding the Fourth Proportional to 12,754.10, 17,600.56 and 7,165.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,754.10 : 17,600.56 = 7,165.10 : x
2. Step 2: Convert to fraction form
   12,754.10/17,600.56 = 7,165.10/x
3. Step 3: Cross multiply
   12,754.10x = 17,600.56 × 7,165.10
4. Step 4: Simplify right side
   12,754.10x = 126,109,666.54
5. Step 5: Solve for x
   x = 126,109,666.54/12,754.10
6. Step 6: Final answer
   x = 9,887.78