Finding the Fourth Proportional to 11,050.21, 16,578.41 and 3,659.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,050.21 : 16,578.41 = 3,659.87 : x
2. Step 2: Convert to fraction form
   11,050.21/16,578.41 = 3,659.87/x
3. Step 3: Cross multiply
   11,050.21x = 16,578.41 × 3,659.87
4. Step 4: Simplify right side
   11,050.21x = 60,674,848.55
5. Step 5: Solve for x
   x = 60,674,848.55/11,050.21
6. Step 6: Final answer
   x = 5,490.83