Finding the Fourth Proportional to 12,635.45, 17,431.57 and 9,272.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.45 : 17,431.57 = 9,272.46 : x
2. Step 2: Convert to fraction form
   12,635.45/17,431.57 = 9,272.46/x
3. Step 3: Cross multiply
   12,635.45x = 17,431.57 × 9,272.46
4. Step 4: Simplify right side
   12,635.45x = 161,633,535.56
5. Step 5: Solve for x
   x = 161,633,535.56/12,635.45
6. Step 6: Final answer
   x = 12,792.07