Finding the Fourth Proportional to 8,066.56, 12,108.32 and 7,148

Step by Step Solution

1. Step 1: Write the proportion equation
   8,066.56 : 12,108.32 = 7,148 : x
2. Step 2: Convert to fraction form
   8,066.56/12,108.32 = 7,148/x
3. Step 3: Cross multiply
   8,066.56x = 12,108.32 × 7,148
4. Step 4: Simplify right side
   8,066.56x = 86,550,271.36
5. Step 5: Solve for x
   x = 86,550,271.36/8,066.56
6. Step 6: Final answer
   x = 10,729.51