Finding the Fourth Proportional to 20,590.89, 30,886.84 and 5,799.71

Step by Step Solution

1. Step 1: Write the proportion equation
   20,590.89 : 30,886.84 = 5,799.71 : x
2. Step 2: Convert to fraction form
   20,590.89/30,886.84 = 5,799.71/x
3. Step 3: Cross multiply
   20,590.89x = 30,886.84 × 5,799.71
4. Step 4: Simplify right side
   20,590.89x = 179,134,714.82
5. Step 5: Solve for x
   x = 179,134,714.82/20,590.89
6. Step 6: Final answer
   x = 8,699.71