Finding the Fourth Proportional to 23,136.53, 31,929.07 and 13,066.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,136.53 : 31,929.07 = 13,066.49 : x
2. Step 2: Convert to fraction form
   23,136.53/31,929.07 = 13,066.49/x
3. Step 3: Cross multiply
   23,136.53x = 31,929.07 × 13,066.49
4. Step 4: Simplify right side
   23,136.53x = 417,200,648.89
5. Step 5: Solve for x
   x = 417,200,648.89/23,136.53
6. Step 6: Final answer
   x = 18,032.12