Finding the Fourth Proportional to 8,039.90, 12,061.27 and 2,774.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,039.90 : 12,061.27 = 2,774.50 : x
2. Step 2: Convert to fraction form
   8,039.90/12,061.27 = 2,774.50/x
3. Step 3: Cross multiply
   8,039.90x = 12,061.27 × 2,774.50
4. Step 4: Simplify right side
   8,039.90x = 33,463,993.62
5. Step 5: Solve for x
   x = 33,463,993.62/8,039.90
6. Step 6: Final answer
   x = 4,162.24