Finding the Fourth Proportional to 10,879.30, 16,303.71 and 4,630.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,879.30 : 16,303.71 = 4,630.87 : x
2. Step 2: Convert to fraction form
   10,879.30/16,303.71 = 4,630.87/x
3. Step 3: Cross multiply
   10,879.30x = 16,303.71 × 4,630.87
4. Step 4: Simplify right side
   10,879.30x = 75,500,361.53
5. Step 5: Solve for x
   x = 75,500,361.53/10,879.30
6. Step 6: Final answer
   x = 6,939.82