Finding the Fourth Proportional to 11,371.42, 17,055.51 and 3,580.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,371.42 : 17,055.51 = 3,580.03 : x
2. Step 2: Convert to fraction form
   11,371.42/17,055.51 = 3,580.03/x
3. Step 3: Cross multiply
   11,371.42x = 17,055.51 × 3,580.03
4. Step 4: Simplify right side
   11,371.42x = 61,059,237.47
5. Step 5: Solve for x
   x = 61,059,237.47/11,371.42
6. Step 6: Final answer
   x = 5,369.53