Finding the Fourth Proportional to 11,731.50, 17,597.59 and 3,940.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,731.50 : 17,597.59 = 3,940.31 : x
2. Step 2: Convert to fraction form
   11,731.50/17,597.59 = 3,940.31/x
3. Step 3: Cross multiply
   11,731.50x = 17,597.59 × 3,940.31
4. Step 4: Simplify right side
   11,731.50x = 69,339,994.00
5. Step 5: Solve for x
   x = 69,339,994.00/11,731.50
6. Step 6: Final answer
   x = 5,910.58