Finding the Fourth Proportional to 11,756.72, 16,222.56 and 7,040

Step by Step Solution

1. Step 1: Write the proportion equation
   11,756.72 : 16,222.56 = 7,040 : x
2. Step 2: Convert to fraction form
   11,756.72/16,222.56 = 7,040/x
3. Step 3: Cross multiply
   11,756.72x = 16,222.56 × 7,040
4. Step 4: Simplify right side
   11,756.72x = 114,206,822.40
5. Step 5: Solve for x
   x = 114,206,822.40/11,756.72
6. Step 6: Final answer
   x = 9,714.17