Finding the Fourth Proportional to 8,597.94, 11,787.89 and 8,442.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,597.94 : 11,787.89 = 8,442.42 : x
2. Step 2: Convert to fraction form
   8,597.94/11,787.89 = 8,442.42/x
3. Step 3: Cross multiply
   8,597.94x = 11,787.89 × 8,442.42
4. Step 4: Simplify right side
   8,597.94x = 99,518,276.08
5. Step 5: Solve for x
   x = 99,518,276.08/8,597.94
6. Step 6: Final answer
   x = 11,574.67