Finding the Fourth Proportional to 5,918.85, 8,142.86 and 5,754.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,918.85 : 8,142.86 = 5,754.83 : x
2. Step 2: Convert to fraction form
   5,918.85/8,142.86 = 5,754.83/x
3. Step 3: Cross multiply
   5,918.85x = 8,142.86 × 5,754.83
4. Step 4: Simplify right side
   5,918.85x = 46,860,748.69
5. Step 5: Solve for x
   x = 46,860,748.69/5,918.85
6. Step 6: Final answer
   x = 7,917.20