Finding the Fourth Proportional to 11,709.73, 16,153.72 and 7,977.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,709.73 : 16,153.72 = 7,977.25 : x
2. Step 2: Convert to fraction form
   11,709.73/16,153.72 = 7,977.25/x
3. Step 3: Cross multiply
   11,709.73x = 16,153.72 × 7,977.25
4. Step 4: Simplify right side
   11,709.73x = 128,862,262.87
5. Step 5: Solve for x
   x = 128,862,262.87/11,709.73
6. Step 6: Final answer
   x = 11,004.72