Finding the Fourth Proportional to 12,203.60, 16,843.82 and 7,947.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,203.60 : 16,843.82 = 7,947.32 : x
2. Step 2: Convert to fraction form
   12,203.60/16,843.82 = 7,947.32/x
3. Step 3: Cross multiply
   12,203.60x = 16,843.82 × 7,947.32
4. Step 4: Simplify right side
   12,203.60x = 133,863,103.61
5. Step 5: Solve for x
   x = 133,863,103.61/12,203.60
6. Step 6: Final answer
   x = 10,969.15