Finding the Fourth Proportional to 13,074.47, 18,042.88 and 7,106.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.47 : 18,042.88 = 7,106.15 : x
2. Step 2: Convert to fraction form
   13,074.47/18,042.88 = 7,106.15/x
3. Step 3: Cross multiply
   13,074.47x = 18,042.88 × 7,106.15
4. Step 4: Simplify right side
   13,074.47x = 128,215,384.37
5. Step 5: Solve for x
   x = 128,215,384.37/13,074.47
6. Step 6: Final answer
   x = 9,806.55