Finding the Fourth Proportional to 5,440.76, 7,507.82 and 3,082.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,440.76 : 7,507.82 = 3,082.31 : x
2. Step 2: Convert to fraction form
   5,440.76/7,507.82 = 3,082.31/x
3. Step 3: Cross multiply
   5,440.76x = 7,507.82 × 3,082.31
4. Step 4: Simplify right side
   5,440.76x = 23,141,428.66
5. Step 5: Solve for x
   x = 23,141,428.66/5,440.76
6. Step 6: Final answer
   x = 4,253.34