Finding the Fourth Proportional to 13,073.55, 18,041.61 and 7,105.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.55 : 18,041.61 = 7,105.22 : x
2. Step 2: Convert to fraction form
   13,073.55/18,041.61 = 7,105.22/x
3. Step 3: Cross multiply
   13,073.55x = 18,041.61 × 7,105.22
4. Step 4: Simplify right side
   13,073.55x = 128,189,608.20
5. Step 5: Solve for x
   x = 128,189,608.20/13,073.55
6. Step 6: Final answer
   x = 9,805.26