Finding the Fourth Proportional to 22,500.61, 31,052.54 and 12,943.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,500.61 : 31,052.54 = 12,943.42 : x
2. Step 2: Convert to fraction form
   22,500.61/31,052.54 = 12,943.42/x
3. Step 3: Cross multiply
   22,500.61x = 31,052.54 × 12,943.42
4. Step 4: Simplify right side
   22,500.61x = 401,926,067.29
5. Step 5: Solve for x
   x = 401,926,067.29/22,500.61
6. Step 6: Final answer
   x = 17,862.90