Finding the Fourth Proportional to 10,767.81, 16,151.84 and 2,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,767.81 : 16,151.84 = 2,870.28 : x
2. Step 2: Convert to fraction form
   10,767.81/16,151.84 = 2,870.28/x
3. Step 3: Cross multiply
   10,767.81x = 16,151.84 × 2,870.28
4. Step 4: Simplify right side
   10,767.81x = 46,360,303.32
5. Step 5: Solve for x
   x = 46,360,303.32/10,767.81
6. Step 6: Final answer
   x = 4,305.45