Finding the Fourth Proportional to 22,944.15, 31,661.69 and 12,870.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,944.15 : 31,661.69 = 12,870.81 : x
2. Step 2: Convert to fraction form
   22,944.15/31,661.69 = 12,870.81/x
3. Step 3: Cross multiply
   22,944.15x = 31,661.69 × 12,870.81
4. Step 4: Simplify right side
   22,944.15x = 407,511,531.91
5. Step 5: Solve for x
   x = 407,511,531.91/22,944.15
6. Step 6: Final answer
   x = 17,761.02