Finding the Fourth Proportional to 8,065.90, 12,100.38 and 2,800.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,065.90 : 12,100.38 = 2,800.71 : x
2. Step 2: Convert to fraction form
   8,065.90/12,100.38 = 2,800.71/x
3. Step 3: Cross multiply
   8,065.90x = 12,100.38 × 2,800.71
4. Step 4: Simplify right side
   8,065.90x = 33,889,655.27
5. Step 5: Solve for x
   x = 33,889,655.27/8,065.90
6. Step 6: Final answer
   x = 4,201.60