Finding the Fourth Proportional to 10,725.62, 16,002.56 and 9,336.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,725.62 : 16,002.56 = 9,336.87 : x
2. Step 2: Convert to fraction form
   10,725.62/16,002.56 = 9,336.87/x
3. Step 3: Cross multiply
   10,725.62x = 16,002.56 × 9,336.87
4. Step 4: Simplify right side
   10,725.62x = 149,413,845.73
5. Step 5: Solve for x
   x = 149,413,845.73/10,725.62
6. Step 6: Final answer
   x = 13,930.56