Finding the Fourth Proportional to 11,665.56, 17,494.86 and 4,268.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.56 : 17,494.86 = 4,268.30 : x
2. Step 2: Convert to fraction form
   11,665.56/17,494.86 = 4,268.30/x
3. Step 3: Cross multiply
   11,665.56x = 17,494.86 × 4,268.30
4. Step 4: Simplify right side
   11,665.56x = 74,673,310.94
5. Step 5: Solve for x
   x = 74,673,310.94/11,665.56
6. Step 6: Final answer
   x = 6,401.18