Finding the Fourth Proportional to 23,291, 32,142.16 and 12,681.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,291 : 32,142.16 = 12,681.22 : x
2. Step 2: Convert to fraction form
   23,291/32,142.16 = 12,681.22/x
3. Step 3: Cross multiply
   23,291x = 32,142.16 × 12,681.22
4. Step 4: Simplify right side
   23,291x = 407,601,578.12
5. Step 5: Solve for x
   x = 407,601,578.12/23,291
6. Step 6: Final answer
   x = 17,500.39