Finding the Fourth Proportional to 5,371.82, 8,071.29 and 5,153.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,371.82 : 8,071.29 = 5,153.12 : x
2. Step 2: Convert to fraction form
   5,371.82/8,071.29 = 5,153.12/x
3. Step 3: Cross multiply
   5,371.82x = 8,071.29 × 5,153.12
4. Step 4: Simplify right side
   5,371.82x = 41,592,325.92
5. Step 5: Solve for x
   x = 41,592,325.92/5,371.82
6. Step 6: Final answer
   x = 7,742.69