Finding the Fourth Proportional to 32,139.72, 44,341.40 and 20,942.28

Step by Step Solution

1. Step 1: Write the proportion equation
   32,139.72 : 44,341.40 = 20,942.28 : x
2. Step 2: Convert to fraction form
   32,139.72/44,341.40 = 20,942.28/x
3. Step 3: Cross multiply
   32,139.72x = 44,341.40 × 20,942.28
4. Step 4: Simplify right side
   32,139.72x = 928,610,014.39
5. Step 5: Solve for x
   x = 928,610,014.39/32,139.72
6. Step 6: Final answer
   x = 28,892.91