Finding the Fourth Proportional to 16,562.95, 22,841.22 and 12,780.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,562.95 : 22,841.22 = 12,780.15 : x
2. Step 2: Convert to fraction form
   16,562.95/22,841.22 = 12,780.15/x
3. Step 3: Cross multiply
   16,562.95x = 22,841.22 × 12,780.15
4. Step 4: Simplify right side
   16,562.95x = 291,914,180.05
5. Step 5: Solve for x
   x = 291,914,180.05/16,562.95
6. Step 6: Final answer
   x = 17,624.53