Finding the Fourth Proportional to 23,152.79, 31,950.85 and 12,542.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,152.79 : 31,950.85 = 12,542.42 : x
2. Step 2: Convert to fraction form
   23,152.79/31,950.85 = 12,542.42/x
3. Step 3: Cross multiply
   23,152.79x = 31,950.85 × 12,542.42
4. Step 4: Simplify right side
   23,152.79x = 400,740,926.96
5. Step 5: Solve for x
   x = 400,740,926.96/23,152.79
6. Step 6: Final answer
   x = 17,308.54