Finding the Fourth Proportional to 22,945.78, 31,666.82 and 12,737.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,945.78 : 31,666.82 = 12,737.35 : x
2. Step 2: Convert to fraction form
   22,945.78/31,666.82 = 12,737.35/x
3. Step 3: Cross multiply
   22,945.78x = 31,666.82 × 12,737.35
4. Step 4: Simplify right side
   22,945.78x = 403,351,345.62
5. Step 5: Solve for x
   x = 403,351,345.62/22,945.78
6. Step 6: Final answer
   x = 17,578.45