Finding the Fourth Proportional to 11,729.89, 17,597.47 and 3,938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,729.89 : 17,597.47 = 3,938.50 : x
2. Step 2: Convert to fraction form
   11,729.89/17,597.47 = 3,938.50/x
3. Step 3: Cross multiply
   11,729.89x = 17,597.47 × 3,938.50
4. Step 4: Simplify right side
   11,729.89x = 69,307,635.60
5. Step 5: Solve for x
   x = 69,307,635.60/11,729.89
6. Step 6: Final answer
   x = 5,908.63