Finding the Fourth Proportional to 10,611.54, 15,911.71 and 3,589.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,611.54 : 15,911.71 = 3,589.14 : x
2. Step 2: Convert to fraction form
   10,611.54/15,911.71 = 3,589.14/x
3. Step 3: Cross multiply
   10,611.54x = 15,911.71 × 3,589.14
4. Step 4: Simplify right side
   10,611.54x = 57,109,354.83
5. Step 5: Solve for x
   x = 57,109,354.83/10,611.54
6. Step 6: Final answer
   x = 5,381.82