Finding the Fourth Proportional to 22,960.98, 31,688.58 and 12,892.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,960.98 : 31,688.58 = 12,892.14 : x
2. Step 2: Convert to fraction form
   22,960.98/31,688.58 = 12,892.14/x
3. Step 3: Cross multiply
   22,960.98x = 31,688.58 × 12,892.14
4. Step 4: Simplify right side
   22,960.98x = 408,533,609.76
5. Step 5: Solve for x
   x = 408,533,609.76/22,960.98
6. Step 6: Final answer
   x = 17,792.52