Finding the Fourth Proportional to 22,939.84, 31,645.31 and 14,986.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,939.84 : 31,645.31 = 14,986.72 : x
2. Step 2: Convert to fraction form
   22,939.84/31,645.31 = 14,986.72/x
3. Step 3: Cross multiply
   22,939.84x = 31,645.31 × 14,986.72
4. Step 4: Simplify right side
   22,939.84x = 474,259,400.28
5. Step 5: Solve for x
   x = 474,259,400.28/22,939.84
6. Step 6: Final answer
   x = 20,674.05