Finding the Fourth Proportional to 22,748.65, 31,392.71 and 12,676.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,748.65 : 31,392.71 = 12,676.87 : x
2. Step 2: Convert to fraction form
   22,748.65/31,392.71 = 12,676.87/x
3. Step 3: Cross multiply
   22,748.65x = 31,392.71 × 12,676.87
4. Step 4: Simplify right side
   22,748.65x = 397,961,303.62
5. Step 5: Solve for x
   x = 397,961,303.62/22,748.65
6. Step 6: Final answer
   x = 17,493.84