Finding the Fourth Proportional to 11,513.88, 17,269.20 and 3,722.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,513.88 : 17,269.20 = 3,722.76 : x
2. Step 2: Convert to fraction form
   11,513.88/17,269.20 = 3,722.76/x
3. Step 3: Cross multiply
   11,513.88x = 17,269.20 × 3,722.76
4. Step 4: Simplify right side
   11,513.88x = 64,289,086.99
5. Step 5: Solve for x
   x = 64,289,086.99/11,513.88
6. Step 6: Final answer
   x = 5,583.62