Finding the Fourth Proportional to 13,077.38, 18,046.03 and 7,109

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.38 : 18,046.03 = 7,109 : x
2. Step 2: Convert to fraction form
   13,077.38/18,046.03 = 7,109/x
3. Step 3: Cross multiply
   13,077.38x = 18,046.03 × 7,109
4. Step 4: Simplify right side
   13,077.38x = 128,289,227.27
5. Step 5: Solve for x
   x = 128,289,227.27/13,077.38
6. Step 6: Final answer
   x = 9,810.01