Finding the Fourth Proportional to 13,073.79, 18,042.02 and 7,105.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.79 : 18,042.02 = 7,105.46 : x
2. Step 2: Convert to fraction form
   13,073.79/18,042.02 = 7,105.46/x
3. Step 3: Cross multiply
   13,073.79x = 18,042.02 × 7,105.46
4. Step 4: Simplify right side
   13,073.79x = 128,196,808.47
5. Step 5: Solve for x
   x = 128,196,808.47/13,073.79
6. Step 6: Final answer
   x = 9,805.63