Finding the Fourth Proportional to 10,843.48, 16,172.69 and 9,445.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,843.48 : 16,172.69 = 9,445.40 : x
2. Step 2: Convert to fraction form
   10,843.48/16,172.69 = 9,445.40/x
3. Step 3: Cross multiply
   10,843.48x = 16,172.69 × 9,445.40
4. Step 4: Simplify right side
   10,843.48x = 152,757,526.13
5. Step 5: Solve for x
   x = 152,757,526.13/10,843.48
6. Step 6: Final answer
   x = 14,087.50