Finding the Fourth Proportional to 11,200.21, 16,788.70 and 5,574.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,200.21 : 16,788.70 = 5,574.15 : x
2. Step 2: Convert to fraction form
   11,200.21/16,788.70 = 5,574.15/x
3. Step 3: Cross multiply
   11,200.21x = 16,788.70 × 5,574.15
4. Step 4: Simplify right side
   11,200.21x = 93,582,746.21
5. Step 5: Solve for x
   x = 93,582,746.21/11,200.21
6. Step 6: Final answer
   x = 8,355.45