Finding the Fourth Proportional to 10,870.42, 16,305.78 and 3,079.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.42 : 16,305.78 = 3,079.23 : x
2. Step 2: Convert to fraction form
   10,870.42/16,305.78 = 3,079.23/x
3. Step 3: Cross multiply
   10,870.42x = 16,305.78 × 3,079.23
4. Step 4: Simplify right side
   10,870.42x = 50,209,246.95
5. Step 5: Solve for x
   x = 50,209,246.95/10,870.42
6. Step 6: Final answer
   x = 4,618.89