Finding the Fourth Proportional to 3,911.34, 5,837.63 and 3,381.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.34 : 5,837.63 = 3,381.91 : x
2. Step 2: Convert to fraction form
   3,911.34/5,837.63 = 3,381.91/x
3. Step 3: Cross multiply
   3,911.34x = 5,837.63 × 3,381.91
4. Step 4: Simplify right side
   3,911.34x = 19,742,339.27
5. Step 5: Solve for x
   x = 19,742,339.27/3,911.34
6. Step 6: Final answer
   x = 5,047.46