Finding the Fourth Proportional to 9,863.94, 13,612.32 and 5,387.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,863.94 : 13,612.32 = 5,387.73 : x
2. Step 2: Convert to fraction form
   9,863.94/13,612.32 = 5,387.73/x
3. Step 3: Cross multiply
   9,863.94x = 13,612.32 × 5,387.73
4. Step 4: Simplify right side
   9,863.94x = 73,339,504.83
5. Step 5: Solve for x
   x = 73,339,504.83/9,863.94
6. Step 6: Final answer
   x = 7,435.11