Finding the Fourth Proportional to 7,665.69, 11,488.77 and 3,507.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665.69 : 11,488.77 = 3,507.96 : x
2. Step 2: Convert to fraction form
   7,665.69/11,488.77 = 3,507.96/x
3. Step 3: Cross multiply
   7,665.69x = 11,488.77 × 3,507.96
4. Step 4: Simplify right side
   7,665.69x = 40,302,145.61
5. Step 5: Solve for x
   x = 40,302,145.61/7,665.69
6. Step 6: Final answer
   x = 5,257.47