Finding the Fourth Proportional to 13,533.29, 20,306.00 and 8,601.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,533.29 : 20,306.00 = 8,601.65 : x
2. Step 2: Convert to fraction form
   13,533.29/20,306.00 = 8,601.65/x
3. Step 3: Cross multiply
   13,533.29x = 20,306.00 × 8,601.65
4. Step 4: Simplify right side
   13,533.29x = 174,665,061.89
5. Step 5: Solve for x
   x = 174,665,061.89/13,533.29
6. Step 6: Final answer
   x = 12,906.33