Finding the Fourth Proportional to 13,359.38, 18,435.89 and 7,692.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,359.38 : 18,435.89 = 7,692.05 : x
2. Step 2: Convert to fraction form
   13,359.38/18,435.89 = 7,692.05/x
3. Step 3: Cross multiply
   13,359.38x = 18,435.89 × 7,692.05
4. Step 4: Simplify right side
   13,359.38x = 141,809,657.03
5. Step 5: Solve for x
   x = 141,809,657.03/13,359.38
6. Step 6: Final answer
   x = 10,614.99