Finding the Fourth Proportional to 4,081.42, 5,631.78 and 2,313.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,081.42 : 5,631.78 = 2,313.10 : x
2. Step 2: Convert to fraction form
   4,081.42/5,631.78 = 2,313.10/x
3. Step 3: Cross multiply
   4,081.42x = 5,631.78 × 2,313.10
4. Step 4: Simplify right side
   4,081.42x = 13,026,870.32
5. Step 5: Solve for x
   x = 13,026,870.32/4,081.42
6. Step 6: Final answer
   x = 3,191.75