Finding the Fourth Proportional to 13,066.16, 18,031.22 and 7,097.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.16 : 18,031.22 = 7,097.78 : x
2. Step 2: Convert to fraction form
   13,066.16/18,031.22 = 7,097.78/x
3. Step 3: Cross multiply
   13,066.16x = 18,031.22 × 7,097.78
4. Step 4: Simplify right side
   13,066.16x = 127,981,632.69
5. Step 5: Solve for x
   x = 127,981,632.69/13,066.16
6. Step 6: Final answer
   x = 9,794.89