Finding the Fourth Proportional to 14,969.31, 20,658.59 and 8,597.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,969.31 : 20,658.59 = 8,597.89 : x
2. Step 2: Convert to fraction form
   14,969.31/20,658.59 = 8,597.89/x
3. Step 3: Cross multiply
   14,969.31x = 20,658.59 × 8,597.89
4. Step 4: Simplify right side
   14,969.31x = 177,620,284.38
5. Step 5: Solve for x
   x = 177,620,284.38/14,969.31
6. Step 6: Final answer
   x = 11,865.63