Finding the Fourth Proportional to 12,760.49, 19,141.16 and 4,441.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.49 : 19,141.16 = 4,441.20 : x
2. Step 2: Convert to fraction form
   12,760.49/19,141.16 = 4,441.20/x
3. Step 3: Cross multiply
   12,760.49x = 19,141.16 × 4,441.20
4. Step 4: Simplify right side
   12,760.49x = 85,009,697.59
5. Step 5: Solve for x
   x = 85,009,697.59/12,760.49
6. Step 6: Final answer
   x = 6,661.95