Finding the Fourth Proportional to 10,872.22, 16,305.72 and 5,023.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,872.22 : 16,305.72 = 5,023.21 : x
2. Step 2: Convert to fraction form
   10,872.22/16,305.72 = 5,023.21/x
3. Step 3: Cross multiply
   10,872.22x = 16,305.72 × 5,023.21
4. Step 4: Simplify right side
   10,872.22x = 81,907,055.76
5. Step 5: Solve for x
   x = 81,907,055.76/10,872.22
6. Step 6: Final answer
   x = 7,533.61