Finding the Fourth Proportional to 11,758.99, 17,643.09 and 5,180.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.99 : 17,643.09 = 5,180.56 : x
2. Step 2: Convert to fraction form
   11,758.99/17,643.09 = 5,180.56/x
3. Step 3: Cross multiply
   11,758.99x = 17,643.09 × 5,180.56
4. Step 4: Simplify right side
   11,758.99x = 91,401,086.33
5. Step 5: Solve for x
   x = 91,401,086.33/11,758.99
6. Step 6: Final answer
   x = 7,772.87