Finding the Fourth Proportional to 5,807.86, 8,014.93 and 3,155.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,807.86 : 8,014.93 = 3,155.31 : x
2. Step 2: Convert to fraction form
   5,807.86/8,014.93 = 3,155.31/x
3. Step 3: Cross multiply
   5,807.86x = 8,014.93 × 3,155.31
4. Step 4: Simplify right side
   5,807.86x = 25,289,580.89
5. Step 5: Solve for x
   x = 25,289,580.89/5,807.86
6. Step 6: Final answer
   x = 4,354.37