Finding the Fourth Proportional to 23,079.55, 34,625.16 and 6,439.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,079.55 : 34,625.16 = 6,439.57 : x
2. Step 2: Convert to fraction form
   23,079.55/34,625.16 = 6,439.57/x
3. Step 3: Cross multiply
   23,079.55x = 34,625.16 × 6,439.57
4. Step 4: Simplify right side
   23,079.55x = 222,971,287.52
5. Step 5: Solve for x
   x = 222,971,287.52/23,079.55
6. Step 6: Final answer
   x = 9,660.99