Finding the Fourth Proportional to 11,758.91, 17,640.01 and 3,439.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.91 : 17,640.01 = 3,439.56 : x
2. Step 2: Convert to fraction form
   11,758.91/17,640.01 = 3,439.56/x
3. Step 3: Cross multiply
   11,758.91x = 17,640.01 × 3,439.56
4. Step 4: Simplify right side
   11,758.91x = 60,673,943.25
5. Step 5: Solve for x
   x = 60,673,943.25/11,758.91
6. Step 6: Final answer
   x = 5,159.83