Finding the Fourth Proportional to 22,930.28, 31,649.42 and 13,982.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,930.28 : 31,649.42 = 13,982.72 : x
2. Step 2: Convert to fraction form
   22,930.28/31,649.42 = 13,982.72/x
3. Step 3: Cross multiply
   22,930.28x = 31,649.42 × 13,982.72
4. Step 4: Simplify right side
   22,930.28x = 442,544,978.02
5. Step 5: Solve for x
   x = 442,544,978.02/22,930.28
6. Step 6: Final answer
   x = 19,299.59