Finding the Fourth Proportional to 12,741.76, 19,112.17 and 3,381.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.76 : 19,112.17 = 3,381.81 : x
2. Step 2: Convert to fraction form
   12,741.76/19,112.17 = 3,381.81/x
3. Step 3: Cross multiply
   12,741.76x = 19,112.17 × 3,381.81
4. Step 4: Simplify right side
   12,741.76x = 64,633,727.63
5. Step 5: Solve for x
   x = 64,633,727.63/12,741.76
6. Step 6: Final answer
   x = 5,072.59