Finding the Fourth Proportional to 20,788.18, 31,177.71 and 5,993.89

Step by Step Solution

1. Step 1: Write the proportion equation
   20,788.18 : 31,177.71 = 5,993.89 : x
2. Step 2: Convert to fraction form
   20,788.18/31,177.71 = 5,993.89/x
3. Step 3: Cross multiply
   20,788.18x = 31,177.71 × 5,993.89
4. Step 4: Simplify right side
   20,788.18x = 186,875,686.25
5. Step 5: Solve for x
   x = 186,875,686.25/20,788.18
6. Step 6: Final answer
   x = 8,989.52