Finding the Fourth Proportional to 16,791.50, 23,172.69 and 9,238.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,791.50 : 23,172.69 = 9,238.04 : x
2. Step 2: Convert to fraction form
   16,791.50/23,172.69 = 9,238.04/x
3. Step 3: Cross multiply
   16,791.50x = 23,172.69 × 9,238.04
4. Step 4: Simplify right side
   16,791.50x = 214,070,237.13
5. Step 5: Solve for x
   x = 214,070,237.13/16,791.50
6. Step 6: Final answer
   x = 12,748.73