Finding the Fourth Proportional to 11,145.88, 16,721.34 and 5,601.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,145.88 : 16,721.34 = 5,601.88 : x
2. Step 2: Convert to fraction form
   11,145.88/16,721.34 = 5,601.88/x
3. Step 3: Cross multiply
   11,145.88x = 16,721.34 × 5,601.88
4. Step 4: Simplify right side
   11,145.88x = 93,670,940.12
5. Step 5: Solve for x
   x = 93,670,940.12/11,145.88
6. Step 6: Final answer
   x = 8,404.09