Finding the Fourth Proportional to 12,140.50, 16,745.16 and 8,562.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,140.50 : 16,745.16 = 8,562.82 : x
2. Step 2: Convert to fraction form
   12,140.50/16,745.16 = 8,562.82/x
3. Step 3: Cross multiply
   12,140.50x = 16,745.16 × 8,562.82
4. Step 4: Simplify right side
   12,140.50x = 143,385,790.95
5. Step 5: Solve for x
   x = 143,385,790.95/12,140.50
6. Step 6: Final answer
   x = 11,810.53