Finding the Fourth Proportional to 28,297.55, 42,416.56 and 9,559.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,297.55 : 42,416.56 = 9,559.82 : x
2. Step 2: Convert to fraction form
   28,297.55/42,416.56 = 9,559.82/x
3. Step 3: Cross multiply
   28,297.55x = 42,416.56 × 9,559.82
4. Step 4: Simplify right side
   28,297.55x = 405,494,796.61
5. Step 5: Solve for x
   x = 405,494,796.61/28,297.55
6. Step 6: Final answer
   x = 14,329.68