Finding the Fourth Proportional to 13,074.06, 18,042.39 and 7,105.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.06 : 18,042.39 = 7,105.83 : x
2. Step 2: Convert to fraction form
   13,074.06/18,042.39 = 7,105.83/x
3. Step 3: Cross multiply
   13,074.06x = 18,042.39 × 7,105.83
4. Step 4: Simplify right side
   13,074.06x = 128,206,156.13
5. Step 5: Solve for x
   x = 128,206,156.13/13,074.06
6. Step 6: Final answer
   x = 9,806.15