Finding the Fourth Proportional to 3,921.82, 5,875.13 and 3,722.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.82 : 5,875.13 = 3,722.56 : x
2. Step 2: Convert to fraction form
   3,921.82/5,875.13 = 3,722.56/x
3. Step 3: Cross multiply
   3,921.82x = 5,875.13 × 3,722.56
4. Step 4: Simplify right side
   3,921.82x = 21,870,518.55
5. Step 5: Solve for x
   x = 21,870,518.55/3,921.82
6. Step 6: Final answer
   x = 5,576.63