Finding the Fourth Proportional to 10,938.16, 16,321.88 and 9,760.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,938.16 : 16,321.88 = 9,760.05 : x
2. Step 2: Convert to fraction form
   10,938.16/16,321.88 = 9,760.05/x
3. Step 3: Cross multiply
   10,938.16x = 16,321.88 × 9,760.05
4. Step 4: Simplify right side
   10,938.16x = 159,302,364.89
5. Step 5: Solve for x
   x = 159,302,364.89/10,938.16
6. Step 6: Final answer
   x = 14,563.91