Finding the Fourth Proportional to 32,139.72, 44,342.64 and 17,990.64

Step by Step Solution

1. Step 1: Write the proportion equation
   32,139.72 : 44,342.64 = 17,990.64 : x
2. Step 2: Convert to fraction form
   32,139.72/44,342.64 = 17,990.64/x
3. Step 3: Cross multiply
   32,139.72x = 44,342.64 × 17,990.64
4. Step 4: Simplify right side
   32,139.72x = 797,752,472.89
5. Step 5: Solve for x
   x = 797,752,472.89/32,139.72
6. Step 6: Final answer
   x = 24,821.39