Finding the Fourth Proportional to 28,318.76, 42,475.41 and 8,597.49

Step by Step Solution

1. Step 1: Write the proportion equation
   28,318.76 : 42,475.41 = 8,597.49 : x
2. Step 2: Convert to fraction form
   28,318.76/42,475.41 = 8,597.49/x
3. Step 3: Cross multiply
   28,318.76x = 42,475.41 × 8,597.49
4. Step 4: Simplify right side
   28,318.76x = 365,182,016.54
5. Step 5: Solve for x
   x = 365,182,016.54/28,318.76
6. Step 6: Final answer
   x = 12,895.41