Finding the Fourth Proportional to 11,411.08, 17,118.24 and 3,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,411.08 : 17,118.24 = 3,620.56 : x
2. Step 2: Convert to fraction form
   11,411.08/17,118.24 = 3,620.56/x
3. Step 3: Cross multiply
   11,411.08x = 17,118.24 × 3,620.56
4. Step 4: Simplify right side
   11,411.08x = 61,977,615.01
5. Step 5: Solve for x
   x = 61,977,615.01/11,411.08
6. Step 6: Final answer
   x = 5,431.35