Finding the Fourth Proportional to 11,729.20, 17,593.98 and 3,938.08

Step by Step Solution

1. Step 1: Write the proportion equation
   11,729.20 : 17,593.98 = 3,938.08 : x
2. Step 2: Convert to fraction form
   11,729.20/17,593.98 = 3,938.08/x
3. Step 3: Cross multiply
   11,729.20x = 17,593.98 × 3,938.08
4. Step 4: Simplify right side
   11,729.20x = 69,286,500.76
5. Step 5: Solve for x
   x = 69,286,500.76/11,729.20
6. Step 6: Final answer
   x = 5,907.18