Finding the Fourth Proportional to 8,067.06, 12,109.07 and 7,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,067.06 : 12,109.07 = 7,148.50 : x
2. Step 2: Convert to fraction form
   8,067.06/12,109.07 = 7,148.50/x
3. Step 3: Cross multiply
   8,067.06x = 12,109.07 × 7,148.50
4. Step 4: Simplify right side
   8,067.06x = 86,561,686.90
5. Step 5: Solve for x
   x = 86,561,686.90/8,067.06
6. Step 6: Final answer
   x = 10,730.26