Finding the Fourth Proportional to 22,819.02, 31,488.42 and 12,746.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,819.02 : 31,488.42 = 12,746.67 : x
2. Step 2: Convert to fraction form
   22,819.02/31,488.42 = 12,746.67/x
3. Step 3: Cross multiply
   22,819.02x = 31,488.42 × 12,746.67
4. Step 4: Simplify right side
   22,819.02x = 401,372,498.56
5. Step 5: Solve for x
   x = 401,372,498.56/22,819.02
6. Step 6: Final answer
   x = 17,589.38