Finding the Fourth Proportional to 11,393, 17,090.14 and 3,185.64

Step by Step Solution

1. Step 1: Write the proportion equation
   11,393 : 17,090.14 = 3,185.64 : x
2. Step 2: Convert to fraction form
   11,393/17,090.14 = 3,185.64/x
3. Step 3: Cross multiply
   11,393x = 17,090.14 × 3,185.64
4. Step 4: Simplify right side
   11,393x = 54,443,033.59
5. Step 5: Solve for x
   x = 54,443,033.59/11,393
6. Step 6: Final answer
   x = 4,778.64