Finding the Fourth Proportional to 16,147.48, 22,277.82 and 10,561.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,147.48 : 22,277.82 = 10,561.72 : x
2. Step 2: Convert to fraction form
   16,147.48/22,277.82 = 10,561.72/x
3. Step 3: Cross multiply
   16,147.48x = 22,277.82 × 10,561.72
4. Step 4: Simplify right side
   16,147.48x = 235,292,097.05
5. Step 5: Solve for x
   x = 235,292,097.05/16,147.48
6. Step 6: Final answer
   x = 14,571.44