Finding the Fourth Proportional to 13,074.51, 18,042.78 and 7,106.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.51 : 18,042.78 = 7,106.19 : x
2. Step 2: Convert to fraction form
   13,074.51/18,042.78 = 7,106.19/x
3. Step 3: Cross multiply
   13,074.51x = 18,042.78 × 7,106.19
4. Step 4: Simplify right side
   13,074.51x = 128,215,422.81
5. Step 5: Solve for x
   x = 128,215,422.81/13,074.51
6. Step 6: Final answer
   x = 9,806.52