Finding the Fourth Proportional to 22,481.57, 31,026.28 and 12,411.95

Step by Step Solution

1. Step 1: Write the proportion equation
   22,481.57 : 31,026.28 = 12,411.95 : x
2. Step 2: Convert to fraction form
   22,481.57/31,026.28 = 12,411.95/x
3. Step 3: Cross multiply
   22,481.57x = 31,026.28 × 12,411.95
4. Step 4: Simplify right side
   22,481.57x = 385,096,449.88
5. Step 5: Solve for x
   x = 385,096,449.88/22,481.57
6. Step 6: Final answer
   x = 17,129.43