Finding the Fourth Proportional to 11,389.06, 17,085.42 and 3,597.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,389.06 : 17,085.42 = 3,597.28 : x
2. Step 2: Convert to fraction form
   11,389.06/17,085.42 = 3,597.28/x
3. Step 3: Cross multiply
   11,389.06x = 17,085.42 × 3,597.28
4. Step 4: Simplify right side
   11,389.06x = 61,461,039.66
5. Step 5: Solve for x
   x = 61,461,039.66/11,389.06
6. Step 6: Final answer
   x = 5,396.50