Finding the Fourth Proportional to 11,877.46, 17,815.51 and 3,112.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,877.46 : 17,815.51 = 3,112.37 : x
2. Step 2: Convert to fraction form
   11,877.46/17,815.51 = 3,112.37/x
3. Step 3: Cross multiply
   11,877.46x = 17,815.51 × 3,112.37
4. Step 4: Simplify right side
   11,877.46x = 55,448,527.56
5. Step 5: Solve for x
   x = 55,448,527.56/11,877.46
6. Step 6: Final answer
   x = 4,668.38