Finding the Fourth Proportional to 11,483.57, 17,221.71 and 3,690.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,483.57 : 17,221.71 = 3,690.56 : x
2. Step 2: Convert to fraction form
   11,483.57/17,221.71 = 3,690.56/x
3. Step 3: Cross multiply
   11,483.57x = 17,221.71 × 3,690.56
4. Step 4: Simplify right side
   11,483.57x = 63,557,810.95
5. Step 5: Solve for x
   x = 63,557,810.95/11,483.57
6. Step 6: Final answer
   x = 5,534.67