Finding the Fourth Proportional to 12,071.43, 16,659.55 and 6,694.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.43 : 16,659.55 = 6,694.40 : x
2. Step 2: Convert to fraction form
   12,071.43/16,659.55 = 6,694.40/x
3. Step 3: Cross multiply
   12,071.43x = 16,659.55 × 6,694.40
4. Step 4: Simplify right side
   12,071.43x = 111,525,691.52
5. Step 5: Solve for x
   x = 111,525,691.52/12,071.43
6. Step 6: Final answer
   x = 9,238.81