Finding the Fourth Proportional to 22,818.06, 31,488.92 and 12,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,818.06 : 31,488.92 = 12,746.50 : x
2. Step 2: Convert to fraction form
   22,818.06/31,488.92 = 12,746.50/x
3. Step 3: Cross multiply
   22,818.06x = 31,488.92 × 12,746.50
4. Step 4: Simplify right side
   22,818.06x = 401,373,388.28
5. Step 5: Solve for x
   x = 401,373,388.28/22,818.06
6. Step 6: Final answer
   x = 17,590.17