Finding the Fourth Proportional to 10,563.30, 15,843.72 and 2,772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,563.30 : 15,843.72 = 2,772.72 : x
2. Step 2: Convert to fraction form
   10,563.30/15,843.72 = 2,772.72/x
3. Step 3: Cross multiply
   10,563.30x = 15,843.72 × 2,772.72
4. Step 4: Simplify right side
   10,563.30x = 43,930,199.32
5. Step 5: Solve for x
   x = 43,930,199.32/10,563.30
6. Step 6: Final answer
   x = 4,158.76