Finding the Fourth Proportional to 10,764.31, 16,145.16 and 2,867.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,764.31 : 16,145.16 = 2,867.40 : x
2. Step 2: Convert to fraction form
   10,764.31/16,145.16 = 2,867.40/x
3. Step 3: Cross multiply
   10,764.31x = 16,145.16 × 2,867.40
4. Step 4: Simplify right side
   10,764.31x = 46,294,631.78
5. Step 5: Solve for x
   x = 46,294,631.78/10,764.31
6. Step 6: Final answer
   x = 4,300.75