Finding the Fourth Proportional to 5,807.73, 8,017.12 and 3,921.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,807.73 : 8,017.12 = 3,921.86 : x
2. Step 2: Convert to fraction form
   5,807.73/8,017.12 = 3,921.86/x
3. Step 3: Cross multiply
   5,807.73x = 8,017.12 × 3,921.86
4. Step 4: Simplify right side
   5,807.73x = 31,442,032.48
5. Step 5: Solve for x
   x = 31,442,032.48/5,807.73
6. Step 6: Final answer
   x = 5,413.82