Finding the Fourth Proportional to 8,068.06, 12,110.57 and 7,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,068.06 : 12,110.57 = 7,149.50 : x
2. Step 2: Convert to fraction form
   8,068.06/12,110.57 = 7,149.50/x
3. Step 3: Cross multiply
   8,068.06x = 12,110.57 × 7,149.50
4. Step 4: Simplify right side
   8,068.06x = 86,584,520.22
5. Step 5: Solve for x
   x = 86,584,520.22/8,068.06
6. Step 6: Final answer
   x = 10,731.76