Finding the Fourth Proportional to 19,074.37, 28,620.22 and 8,543.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,074.37 : 28,620.22 = 8,543.29 : x
2. Step 2: Convert to fraction form
   19,074.37/28,620.22 = 8,543.29/x
3. Step 3: Cross multiply
   19,074.37x = 28,620.22 × 8,543.29
4. Step 4: Simplify right side
   19,074.37x = 244,510,839.32
5. Step 5: Solve for x
   x = 244,510,839.32/19,074.37
6. Step 6: Final answer
   x = 12,818.82