Finding the Fourth Proportional to 13,073.69, 18,041.81 and 7,105.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.69 : 18,041.81 = 7,105.42 : x
2. Step 2: Convert to fraction form
   13,073.69/18,041.81 = 7,105.42/x
3. Step 3: Cross multiply
   13,073.69x = 18,041.81 × 7,105.42
4. Step 4: Simplify right side
   13,073.69x = 128,194,637.61
5. Step 5: Solve for x
   x = 128,194,637.61/13,073.69
6. Step 6: Final answer
   x = 9,805.54