Finding the Fourth Proportional to 11,200.55, 16,789.21 and 5,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,200.55 : 16,789.21 = 5,574.50 : x
2. Step 2: Convert to fraction form
   11,200.55/16,789.21 = 5,574.50/x
3. Step 3: Cross multiply
   11,200.55x = 16,789.21 × 5,574.50
4. Step 4: Simplify right side
   11,200.55x = 93,591,384.68
5. Step 5: Solve for x
   x = 93,591,384.68/11,200.55
6. Step 6: Final answer
   x = 8,355.96