Finding the Fourth Proportional to 8,068.56, 12,111.32 and 7,150

Step by Step Solution

1. Step 1: Write the proportion equation
   8,068.56 : 12,111.32 = 7,150 : x
2. Step 2: Convert to fraction form
   8,068.56/12,111.32 = 7,150/x
3. Step 3: Cross multiply
   8,068.56x = 12,111.32 × 7,150
4. Step 4: Simplify right side
   8,068.56x = 86,595,938
5. Step 5: Solve for x
   x = 86,595,938/8,068.56
6. Step 6: Final answer
   x = 10,732.51