Finding the Fourth Proportional to 20,869.82, 31,265.51 and 10,327.61

Step by Step Solution

1. Step 1: Write the proportion equation
   20,869.82 : 31,265.51 = 10,327.61 : x
2. Step 2: Convert to fraction form
   20,869.82/31,265.51 = 10,327.61/x
3. Step 3: Cross multiply
   20,869.82x = 31,265.51 × 10,327.61
4. Step 4: Simplify right side
   20,869.82x = 322,897,785.77
5. Step 5: Solve for x
   x = 322,897,785.77/20,869.82
6. Step 6: Final answer
   x = 15,472.00