Finding the Fourth Proportional to 21,411.72, 29,546.10 and 12,460.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,411.72 : 29,546.10 = 12,460.41 : x
2. Step 2: Convert to fraction form
   21,411.72/29,546.10 = 12,460.41/x
3. Step 3: Cross multiply
   21,411.72x = 29,546.10 × 12,460.41
4. Step 4: Simplify right side
   21,411.72x = 368,156,519.90
5. Step 5: Solve for x
   x = 368,156,519.90/21,411.72
6. Step 6: Final answer
   x = 17,194.16