Finding the Fourth Proportional to 12,839.43, 19,243.25 and 7,275.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,839.43 : 19,243.25 = 7,275.92 : x
2. Step 2: Convert to fraction form
   12,839.43/19,243.25 = 7,275.92/x
3. Step 3: Cross multiply
   12,839.43x = 19,243.25 × 7,275.92
4. Step 4: Simplify right side
   12,839.43x = 140,012,214.94
5. Step 5: Solve for x
   x = 140,012,214.94/12,839.43
6. Step 6: Final answer
   x = 10,904.86