Finding the Fourth Proportional to 32,109, 44,310.42 and 20,931

Step by Step Solution

1. Step 1: Write the proportion equation
   32,109 : 44,310.42 = 20,931 : x
2. Step 2: Convert to fraction form
   32,109/44,310.42 = 20,931/x
3. Step 3: Cross multiply
   32,109x = 44,310.42 × 20,931
4. Step 4: Simplify right side
   32,109x = 927,461,401.02
5. Step 5: Solve for x
   x = 927,461,401.02/32,109
6. Step 6: Final answer
   x = 28,884.78