Finding the Fourth Proportional to 7,023.74, 9,693.15 and 3,879.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,023.74 : 9,693.15 = 3,879.86 : x
2. Step 2: Convert to fraction form
   7,023.74/9,693.15 = 3,879.86/x
3. Step 3: Cross multiply
   7,023.74x = 9,693.15 × 3,879.86
4. Step 4: Simplify right side
   7,023.74x = 37,608,064.96
5. Step 5: Solve for x
   x = 37,608,064.96/7,023.74
6. Step 6: Final answer
   x = 5,354.42