Finding the Fourth Proportional to 14,624.89, 20,178.82 and 8,658.02

Step by Step Solution

1. Step 1: Write the proportion equation
   14,624.89 : 20,178.82 = 8,658.02 : x
2. Step 2: Convert to fraction form
   14,624.89/20,178.82 = 8,658.02/x
3. Step 3: Cross multiply
   14,624.89x = 20,178.82 × 8,658.02
4. Step 4: Simplify right side
   14,624.89x = 174,708,688.41
5. Step 5: Solve for x
   x = 174,708,688.41/14,624.89
6. Step 6: Final answer
   x = 11,945.99