Finding the Fourth Proportional to 22,883.92, 31,580.58 and 12,812.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,883.92 : 31,580.58 = 12,812.78 : x
2. Step 2: Convert to fraction form
   22,883.92/31,580.58 = 12,812.78/x
3. Step 3: Cross multiply
   22,883.92x = 31,580.58 × 12,812.78
4. Step 4: Simplify right side
   22,883.92x = 404,635,150.81
5. Step 5: Solve for x
   x = 404,635,150.81/22,883.92
6. Step 6: Final answer
   x = 17,682.08