Finding the Fourth Proportional to 22,501.57, 31,045.93 and 12,940.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,501.57 : 31,045.93 = 12,940.94 : x
2. Step 2: Convert to fraction form
   22,501.57/31,045.93 = 12,940.94/x
3. Step 3: Cross multiply
   22,501.57x = 31,045.93 × 12,940.94
4. Step 4: Simplify right side
   22,501.57x = 401,763,517.37
5. Step 5: Solve for x
   x = 401,763,517.37/22,501.57
6. Step 6: Final answer
   x = 17,854.91