Finding the Fourth Proportional to 13,849.12, 20,760.72 and 5,081.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,849.12 : 20,760.72 = 5,081.68 : x
2. Step 2: Convert to fraction form
   13,849.12/20,760.72 = 5,081.68/x
3. Step 3: Cross multiply
   13,849.12x = 20,760.72 × 5,081.68
4. Step 4: Simplify right side
   13,849.12x = 105,499,335.61
5. Step 5: Solve for x
   x = 105,499,335.61/13,849.12
6. Step 6: Final answer
   x = 7,617.76