Finding the Fourth Proportional to 12,453.52, 18,680.25 and 5,786.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,453.52 : 18,680.25 = 5,786.37 : x
2. Step 2: Convert to fraction form
   12,453.52/18,680.25 = 5,786.37/x
3. Step 3: Cross multiply
   12,453.52x = 18,680.25 × 5,786.37
4. Step 4: Simplify right side
   12,453.52x = 108,090,838.19
5. Step 5: Solve for x
   x = 108,090,838.19/12,453.52
6. Step 6: Final answer
   x = 8,679.54