Finding the Fourth Proportional to 11,744.98, 17,620.20 and 3,425.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,744.98 : 17,620.20 = 3,425.88 : x
2. Step 2: Convert to fraction form
   11,744.98/17,620.20 = 3,425.88/x
3. Step 3: Cross multiply
   11,744.98x = 17,620.20 × 3,425.88
4. Step 4: Simplify right side
   11,744.98x = 60,364,690.78
5. Step 5: Solve for x
   x = 60,364,690.78/11,744.98
6. Step 6: Final answer
   x = 5,139.62