Finding the Fourth Proportional to 11,401.28, 17,101.24 and 3,503.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.28 : 17,101.24 = 3,503.87 : x
2. Step 2: Convert to fraction form
   11,401.28/17,101.24 = 3,503.87/x
3. Step 3: Cross multiply
   11,401.28x = 17,101.24 × 3,503.87
4. Step 4: Simplify right side
   11,401.28x = 59,920,555.79
5. Step 5: Solve for x
   x = 59,920,555.79/11,401.28
6. Step 6: Final answer
   x = 5,255.60