Finding the Fourth Proportional to 11,278.74, 16,913.94 and 3,881.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,278.74 : 16,913.94 = 3,881.16 : x
2. Step 2: Convert to fraction form
   11,278.74/16,913.94 = 3,881.16/x
3. Step 3: Cross multiply
   11,278.74x = 16,913.94 × 3,881.16
4. Step 4: Simplify right side
   11,278.74x = 65,645,707.37
5. Step 5: Solve for x
   x = 65,645,707.37/11,278.74
6. Step 6: Final answer
   x = 5,820.31