Finding the Fourth Proportional to 31,593.57, 43,590.33 and 20,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,593.57 : 43,590.33 = 20,111.82 : x
2. Step 2: Convert to fraction form
   31,593.57/43,590.33 = 20,111.82/x
3. Step 3: Cross multiply
   31,593.57x = 43,590.33 × 20,111.82
4. Step 4: Simplify right side
   31,593.57x = 876,680,870.70
5. Step 5: Solve for x
   x = 876,680,870.70/31,593.57
6. Step 6: Final answer
   x = 27,748.71