Finding the Fourth Proportional to 22,786.96, 31,446.84 and 12,714.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,786.96 : 31,446.84 = 12,714.88 : x
2. Step 2: Convert to fraction form
   22,786.96/31,446.84 = 12,714.88/x
3. Step 3: Cross multiply
   22,786.96x = 31,446.84 × 12,714.88
4. Step 4: Simplify right side
   22,786.96x = 399,842,796.98
5. Step 5: Solve for x
   x = 399,842,796.98/22,786.96
6. Step 6: Final answer
   x = 17,547.00