Finding the Fourth Proportional to 12,481.84, 17,227.72 and 7,943.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,481.84 : 17,227.72 = 7,943.60 : x
2. Step 2: Convert to fraction form
   12,481.84/17,227.72 = 7,943.60/x
3. Step 3: Cross multiply
   12,481.84x = 17,227.72 × 7,943.60
4. Step 4: Simplify right side
   12,481.84x = 136,850,116.59
5. Step 5: Solve for x
   x = 136,850,116.59/12,481.84
6. Step 6: Final answer
   x = 10,963.94