Finding the Fourth Proportional to 11,877.11, 17,816.69 and 3,112.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,877.11 : 17,816.69 = 3,112.03 : x
2. Step 2: Convert to fraction form
   11,877.11/17,816.69 = 3,112.03/x
3. Step 3: Cross multiply
   11,877.11x = 17,816.69 × 3,112.03
4. Step 4: Simplify right side
   11,877.11x = 55,446,025.35
5. Step 5: Solve for x
   x = 55,446,025.35/11,877.11
6. Step 6: Final answer
   x = 4,668.31