Finding the Fourth Proportional to 20,569.86, 30,855.98 and 5,779.93

Step by Step Solution

1. Step 1: Write the proportion equation
   20,569.86 : 30,855.98 = 5,779.93 : x
2. Step 2: Convert to fraction form
   20,569.86/30,855.98 = 5,779.93/x
3. Step 3: Cross multiply
   20,569.86x = 30,855.98 × 5,779.93
4. Step 4: Simplify right side
   20,569.86x = 178,345,404.48
5. Step 5: Solve for x
   x = 178,345,404.48/20,569.86
6. Step 6: Final answer
   x = 8,670.23