Finding the Fourth Proportional to 22,981.59, 31,714.72 and 12,910.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,981.59 : 31,714.72 = 12,910.46 : x
2. Step 2: Convert to fraction form
   22,981.59/31,714.72 = 12,910.46/x
3. Step 3: Cross multiply
   22,981.59x = 31,714.72 × 12,910.46
4. Step 4: Simplify right side
   22,981.59x = 409,451,433.12
5. Step 5: Solve for x
   x = 409,451,433.12/22,981.59
6. Step 6: Final answer
   x = 17,816.50