Finding the Fourth Proportional to 22,900.72, 31,595.82 and 12,827.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,900.72 : 31,595.82 = 12,827.80 : x
2. Step 2: Convert to fraction form
   22,900.72/31,595.82 = 12,827.80/x
3. Step 3: Cross multiply
   22,900.72x = 31,595.82 × 12,827.80
4. Step 4: Simplify right side
   22,900.72x = 405,304,859.80
5. Step 5: Solve for x
   x = 405,304,859.80/22,900.72
6. Step 6: Final answer
   x = 17,698.35