Finding the Fourth Proportional to 31,389.05, 43,300.82 and 20,046.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,389.05 : 43,300.82 = 20,046.62 : x
2. Step 2: Convert to fraction form
   31,389.05/43,300.82 = 20,046.62/x
3. Step 3: Cross multiply
   31,389.05x = 43,300.82 × 20,046.62
4. Step 4: Simplify right side
   31,389.05x = 868,034,767.49
5. Step 5: Solve for x
   x = 868,034,767.49/31,389.05
6. Step 6: Final answer
   x = 27,654.07