Finding the Fourth Proportional to 16,560.80, 24,843.25 and 5,316.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,560.80 : 24,843.25 = 5,316.89 : x
2. Step 2: Convert to fraction form
   16,560.80/24,843.25 = 5,316.89/x
3. Step 3: Cross multiply
   16,560.80x = 24,843.25 × 5,316.89
4. Step 4: Simplify right side
   16,560.80x = 132,088,709.92
5. Step 5: Solve for x
   x = 132,088,709.92/16,560.80
6. Step 6: Final answer
   x = 7,975.99