Finding the Fourth Proportional to 16,520.16, 24,791.76 and 7,281.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.16 : 24,791.76 = 7,281.12 : x
2. Step 2: Convert to fraction form
   16,520.16/24,791.76 = 7,281.12/x
3. Step 3: Cross multiply
   16,520.16x = 24,791.76 × 7,281.12
4. Step 4: Simplify right side
   16,520.16x = 180,511,779.57
5. Step 5: Solve for x
   x = 180,511,779.57/16,520.16
6. Step 6: Final answer
   x = 10,926.76