Finding the Fourth Proportional to 22,926.54, 31,644.25 and 13,978.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,926.54 : 31,644.25 = 13,978.97 : x
2. Step 2: Convert to fraction form
   22,926.54/31,644.25 = 13,978.97/x
3. Step 3: Cross multiply
   22,926.54x = 31,644.25 × 13,978.97
4. Step 4: Simplify right side
   22,926.54x = 442,354,065.59
5. Step 5: Solve for x
   x = 442,354,065.59/22,926.54
6. Step 6: Final answer
   x = 19,294.41