Finding the Fourth Proportional to 5,699.21, 7,864.83 and 4,018.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,699.21 : 7,864.83 = 4,018.86 : x
2. Step 2: Convert to fraction form
   5,699.21/7,864.83 = 4,018.86/x
3. Step 3: Cross multiply
   5,699.21x = 7,864.83 × 4,018.86
4. Step 4: Simplify right side
   5,699.21x = 31,607,650.69
5. Step 5: Solve for x
   x = 31,607,650.69/5,699.21
6. Step 6: Final answer
   x = 5,545.98