Finding the Fourth Proportional to 13,074.98, 18,042.70 and 7,106.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.98 : 18,042.70 = 7,106.60 : x
2. Step 2: Convert to fraction form
   13,074.98/18,042.70 = 7,106.60/x
3. Step 3: Cross multiply
   13,074.98x = 18,042.70 × 7,106.60
4. Step 4: Simplify right side
   13,074.98x = 128,222,251.82
5. Step 5: Solve for x
   x = 128,222,251.82/13,074.98
6. Step 6: Final answer
   x = 9,806.69