Finding the Fourth Proportional to 12,644.14, 17,443.47 and 7,927.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,644.14 : 17,443.47 = 7,927.52 : x
2. Step 2: Convert to fraction form
   12,644.14/17,443.47 = 7,927.52/x
3. Step 3: Cross multiply
   12,644.14x = 17,443.47 × 7,927.52
4. Step 4: Simplify right side
   12,644.14x = 138,283,457.29
5. Step 5: Solve for x
   x = 138,283,457.29/12,644.14
6. Step 6: Final answer
   x = 10,936.56