Finding the Fourth Proportional to 13,100.73, 19,612.41 and 8,650.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.73 : 19,612.41 = 8,650.18 : x
2. Step 2: Convert to fraction form
   13,100.73/19,612.41 = 8,650.18/x
3. Step 3: Cross multiply
   13,100.73x = 19,612.41 × 8,650.18
4. Step 4: Simplify right side
   13,100.73x = 169,650,876.73
5. Step 5: Solve for x
   x = 169,650,876.73/13,100.73
6. Step 6: Final answer
   x = 12,949.73