Finding the Fourth Proportional to 12,426.46, 17,142.86 and 7,387.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.46 : 17,142.86 = 7,387.82 : x
2. Step 2: Convert to fraction form
   12,426.46/17,142.86 = 7,387.82/x
3. Step 3: Cross multiply
   12,426.46x = 17,142.86 × 7,387.82
4. Step 4: Simplify right side
   12,426.46x = 126,648,363.97
5. Step 5: Solve for x
   x = 126,648,363.97/12,426.46
6. Step 6: Final answer
   x = 10,191.83