Finding the Fourth Proportional to 22,819.74, 31,491.90 and 12,747.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,819.74 : 31,491.90 = 12,747.84 : x
2. Step 2: Convert to fraction form
   22,819.74/31,491.90 = 12,747.84/x
3. Step 3: Cross multiply
   22,819.74x = 31,491.90 × 12,747.84
4. Step 4: Simplify right side
   22,819.74x = 401,453,702.50
5. Step 5: Solve for x
   x = 401,453,702.50/22,819.74
6. Step 6: Final answer
   x = 17,592.39