Finding the Fourth Proportional to 22,945.73, 31,659.71 and 13,379.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,945.73 : 31,659.71 = 13,379.88 : x
2. Step 2: Convert to fraction form
   22,945.73/31,659.71 = 13,379.88/x
3. Step 3: Cross multiply
   22,945.73x = 31,659.71 × 13,379.88
4. Step 4: Simplify right side
   22,945.73x = 423,603,247.72
5. Step 5: Solve for x
   x = 423,603,247.72/22,945.73
6. Step 6: Final answer
   x = 18,461.09