Finding the Fourth Proportional to 11,658.51, 16,102.11 and 7,697.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,658.51 : 16,102.11 = 7,697.31 : x
2. Step 2: Convert to fraction form
   11,658.51/16,102.11 = 7,697.31/x
3. Step 3: Cross multiply
   11,658.51x = 16,102.11 × 7,697.31
4. Step 4: Simplify right side
   11,658.51x = 123,942,932.32
5. Step 5: Solve for x
   x = 123,942,932.32/11,658.51
6. Step 6: Final answer
   x = 10,631.11