Finding the Fourth Proportional to 10,730.31, 16,069.47 and 5,451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,730.31 : 16,069.47 = 5,451.42 : x
2. Step 2: Convert to fraction form
   10,730.31/16,069.47 = 5,451.42/x
3. Step 3: Cross multiply
   10,730.31x = 16,069.47 × 5,451.42
4. Step 4: Simplify right side
   10,730.31x = 87,601,430.15
5. Step 5: Solve for x
   x = 87,601,430.15/10,730.31
6. Step 6: Final answer
   x = 8,163.92