Finding the Fourth Proportional to 22,496.94, 31,051.78 and 12,937.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,496.94 : 31,051.78 = 12,937.86 : x
2. Step 2: Convert to fraction form
   22,496.94/31,051.78 = 12,937.86/x
3. Step 3: Cross multiply
   22,496.94x = 31,051.78 × 12,937.86
4. Step 4: Simplify right side
   22,496.94x = 401,743,550.05
5. Step 5: Solve for x
   x = 401,743,550.05/22,496.94
6. Step 6: Final answer
   x = 17,857.70