Finding the Fourth Proportional to 4,081.01, 5,631.30 and 2,312.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,081.01 : 5,631.30 = 2,312.55 : x
2. Step 2: Convert to fraction form
   4,081.01/5,631.30 = 2,312.55/x
3. Step 3: Cross multiply
   4,081.01x = 5,631.30 × 2,312.55
4. Step 4: Simplify right side
   4,081.01x = 13,022,662.82
5. Step 5: Solve for x
   x = 13,022,662.82/4,081.01
6. Step 6: Final answer
   x = 3,191.04